75911646552 has 128 divisors (see below), whose sum is σ = 228651171840. Its totient is φ = 20542746240.

The previous prime is 75911646539. The next prime is 75911646571. The reversal of 75911646552 is 25564611957.

It is a junction number, because it is equal to n+sod(n) for n = 75911646495 and 75911646504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 89713 + ... + 399839.

It is an arithmetic number, because the mean of its divisors is an integer number (1786337280).

Almost surely, 2^75911646552 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 75911646552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114325585920).

75911646552 is an abundant number, since it is smaller than the sum of its proper divisors (152739525288).

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

75911646552 is a wasteful number, since it uses less digits than its factorization.

75911646552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310221 (or 310217 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 51.

The spelling of 75911646552 in words is "seventy-five billion, nine hundred eleven million, six hundred forty-six thousand, five hundred fifty-two".