78677534325 has 96 divisors (see below), whose sum is σ = 145096963200. Its totient is φ = 37351480320.

The previous prime is 78677534281. The next prime is 78677534347. The reversal of 78677534325 is 52343577687.

It is not a de Polignac number, because 78677534325 - 2¹¹ = 78677532277 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 36106086 + ... + 36108264.

It is an arithmetic number, because the mean of its divisors is an integer number (1511426700).

Almost surely, 2^78677534325 is an apocalyptic number.

78677534325 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

78677534325 is a deficient number, since it is larger than the sum of its proper divisors (66419428875).

78677534325 is a wasteful number, since it uses less digits than its factorization.

78677534325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3511 (or 3506 counting only the distinct ones).

The product of its digits is 29635200, while the sum is 57.

The spelling of 78677534325 in words is "seventy-eight billion, six hundred seventy-seven million, five hundred thirty-four thousand, three hundred twenty-five".