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52155450986688 = 263273377134793
BaseRepresentation
bin10111101101111011000110…
…01000010001000011000000
320211200000100001110102222100
423312331203020101003000
523314003330423033223
6302531514452310400
713662051460464000
oct1366754310210300
9224600301412870
1052155450986688
1115689003434aa5
125a240ab012400
1323143129491ba
14cc44a1784000
15606a3a059043
hex2f6f632110c0

52155450986688 has 336 divisors, whose sum is σ = 179049082388800. Its totient is φ = 14498810597376.

The previous prime is 52155450986609. The next prime is 52155450986719. The reversal of 52155450986688 is 88668905455125.

52155450986688 is a `hidden beast` number, since 5 + 2 + 1 + 5 + 5 + 450 + 98 + 6 + 6 + 88 = 666.

It is a tau number, because it is divible by the number of its divisors (336).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3742620 + ... + 10877412.

Almost surely, 252155450986688 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52155450986688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89524541194400).

52155450986688 is an abundant number, since it is smaller than the sum of its proper divisors (126893631402112).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52155450986688 is a wasteful number, since it uses less digits than its factorization.

52155450986688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7134869 (or 7134842 counting only the distinct ones).

The product of its (nonzero) digits is 829440000, while the sum is 72.

The spelling of 52155450986688 in words is "fifty-two trillion, one hundred fifty-five billion, four hundred fifty million, nine hundred eighty-six thousand, six hundred eighty-eight".