78610385250 has 64 divisors (see below), whose sum is σ = 218012820480. Its totient is φ = 20962767600.

The previous prime is 78610385239. The next prime is 78610385257. The reversal of 78610385250 is 5258301687.

78610385250 is a `hidden beast` number, since 7 + 8 + 6 + 10 + 385 + 250 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 78610385196 and 78610385205.

It is not an unprimeable number, because it can be changed into a prime (78610385257) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5816242 + ... + 5829741.

It is an arithmetic number, because the mean of its divisors is an integer number (3406450320).

Almost surely, 2^78610385250 is an apocalyptic number.

78610385250 is an abundant number, since it is smaller than the sum of its proper divisors (139402435230).

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

78610385250 is a wasteful number, since it uses less digits than its factorization.

78610385250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11646009 (or 11645993 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 78610385250 in words is "seventy-eight billion, six hundred ten million, three hundred eighty-five thousand, two hundred fifty".