26555913450 has 384 divisors, whose sum is σ = 82151884800. Its totient is φ = 6253632000.

The previous prime is 26555913389. The next prime is 26555913493. The reversal of 26555913450 is 5431955562.

26555913450 is a `hidden beast` number, since 2 + 6 + 5 + 5 + 591 + 3 + 4 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 26555913396 and 26555913405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 93837009 + ... + 93837291.

It is an arithmetic number, because the mean of its divisors is an integer number (213937200).

Almost surely, 2^26555913450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26555913450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41075942400).

26555913450 is an abundant number, since it is smaller than the sum of its proper divisors (55595971350).

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

26555913450 is a wasteful number, since it uses less digits than its factorization.

26555913450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 464 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 45.

The spelling of 26555913450 in words is "twenty-six billion, five hundred fifty-five million, nine hundred thirteen thousand, four hundred fifty".