77707700925 has 12 divisors (see below), whose sum is σ = 128476732320. Its totient is φ = 41444107120.

The previous prime is 77707700923. The next prime is 77707700951. The reversal of 77707700925 is 52900770777.

It is not a de Polignac number, because 77707700925 - 2¹ = 77707700923 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77707700923) 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, 518051265 + ... + 518051414.

It is an arithmetic number, because the mean of its divisors is an integer number (10706394360).

Almost surely, 2^77707700925 is an apocalyptic number.

77707700925 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

77707700925 is a deficient number, since it is larger than the sum of its proper divisors (50769031395).

77707700925 is a wasteful number, since it uses less digits than its factorization.

77707700925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036102692 (or 1036102687 counting only the distinct ones).

The product of its (nonzero) digits is 1512630, while the sum is 51.

The spelling of 77707700925 in words is "seventy-seven billion, seven hundred seven million, seven hundred thousand, nine hundred twenty-five".