77925416960 has 64 divisors (see below), whose sum is σ = 187018540200. Its totient is φ = 31170101248.

The previous prime is 77925416929. The next prime is 77925416963. The reversal of 77925416960 is 6961452977.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 77925416896 and 77925416905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77925416963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73970 + ... + 401649.

Almost surely, 2^77925416960 is an apocalyptic number.

It is an amenable number.

77925416960 is an abundant number, since it is smaller than the sum of its proper divisors (109093123240).

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

77925416960 is an frugal number, since it uses more digits than its factorization.

77925416960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475654 (or 475626 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 77925416960 in words is "seventy-seven billion, nine hundred twenty-five million, four hundred sixteen thousand, nine hundred sixty".