77241957960 has 64 divisors (see below), whose sum is σ = 231755515200. Its totient is φ = 20595220736.

The previous prime is 77241957941. The next prime is 77241958103. The reversal of 77241957960 is 6975914277.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 77241957960.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1012846 + ... + 1086434.

It is an arithmetic number, because the mean of its divisors is an integer number (3621179925).

Almost surely, 2^77241957960 is an apocalyptic number.

It is an amenable number.

77241957960 is an abundant number, since it is smaller than the sum of its proper divisors (154513557240).

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

77241957960 is a wasteful number, since it uses less digits than its factorization.

77241957960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82350 (or 82346 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 57.

The spelling of 77241957960 in words is "seventy-seven billion, two hundred forty-one million, nine hundred fifty-seven thousand, nine hundred sixty".