77152077252 has 36 divisors (see below), whose sum is σ = 195742974336. Its totient is φ = 25622457840.

The previous prime is 77152077251. The next prime is 77152077269. The reversal of 77152077252 is 25277025177.

77152077252 is a `hidden beast` number, since 7 + 7 + 1 + 520 + 7 + 72 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 77152077198 and 77152077207.

It is not an unprimeable number, because it can be changed into a prime (77152077251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3944328 + ... + 3963839.

Almost surely, 2^77152077252 is an apocalyptic number.

It is an amenable number.

77152077252 is an abundant number, since it is smaller than the sum of its proper divisors (118590897084).

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

77152077252 is a wasteful number, since it uses less digits than its factorization.

77152077252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7908448 (or 7908443 counting only the distinct ones).

The product of its (nonzero) digits is 480200, while the sum is 45.

The spelling of 77152077252 in words is "seventy-seven billion, one hundred fifty-two million, seventy-seven thousand, two hundred fifty-two".