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72461048688 = 24387214087
BaseRepresentation
bin100001101111100000…
…0111101101101110000
320221000221020200000000
41003133000331231300
52141400012024223
653142123430000
75143436515500
oct1033700755560
9227027220000
1072461048688
1128804411406
1212063085300
136aaa289692
143715807a00
151d416e5543
hex10df03db70

72461048688 has 270 divisors, whose sum is σ = 244976894136. Its totient is φ = 20701687104.

The previous prime is 72461048683. The next prime is 72461048707. The reversal of 72461048688 is 88684016427.

72461048688 is a `hidden beast` number, since 7 + 24 + 61 + 0 + 486 + 88 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72461048683) by changing a digit.

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 53 ways as a sum of consecutive naturals, for example, 5136781 + ... + 5150867.

Almost surely, 272461048688 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 72461048688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122488447068).

72461048688 is an abundant number, since it is smaller than the sum of its proper divisors (172515845448).

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

72461048688 is an equidigital number, since it uses as much as digits as its factorization.

72461048688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14133 (or 14099 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 72461048688 in words is "seventy-two billion, four hundred sixty-one million, forty-eight thousand, six hundred eighty-eight".