78702516252 has 36 divisors (see below), whose sum is σ = 198971103240. Its totient is φ = 26230396512.

The previous prime is 78702516173. The next prime is 78702516283. The reversal of 78702516252 is 25261520787.

78702516252 is a `hidden beast` number, since 7 + 87 + 0 + 2 + 516 + 2 + 52 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 78702516198 and 78702516207.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102163 + ... + 409685.

It is an arithmetic number, because the mean of its divisors is an integer number (5526975090).

Almost surely, 2^78702516252 is an apocalyptic number.

It is an amenable number.

78702516252 is an abundant number, since it is smaller than the sum of its proper divisors (120268586988).

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

78702516252 is a wasteful number, since it uses less digits than its factorization.

78702516252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314642 (or 314637 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 78702516252 in words is "seventy-eight billion, seven hundred two million, five hundred sixteen thousand, two hundred fifty-two".