77707112725 has 24 divisors (see below), whose sum is σ = 105507398880. Its totient is φ = 56304120000.

The previous prime is 77707112723. The next prime is 77707112759. The reversal of 77707112725 is 52721170777.

It is a happy number.

It is not a de Polignac number, because 77707112725 - 2¹ = 77707112723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77707112723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 451251 + ... + 599200.

It is an arithmetic number, because the mean of its divisors is an integer number (4396141620).

Almost surely, 2^77707112725 is an apocalyptic number.

It is an amenable number.

77707112725 is a deficient number, since it is larger than the sum of its proper divisors (27800286155).

77707112725 is a wasteful number, since it uses less digits than its factorization.

77707112725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050741 (or 1050736 counting only the distinct ones).

The product of its (nonzero) digits is 336140, while the sum is 46.

The spelling of 77707112725 in words is "seventy-seven billion, seven hundred seven million, one hundred twelve thousand, seven hundred twenty-five".