78625251308 has 12 divisors (see below), whose sum is σ = 137735029992. Its totient is φ = 39272385600.

The previous prime is 78625251293. The next prime is 78625251317. The reversal of 78625251308 is 80315252687.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10055618 + ... + 10063433.

It is an arithmetic number, because the mean of its divisors is an integer number (11477919166).

Almost surely, 2^78625251308 is an apocalyptic number.

It is an amenable number.

78625251308 is a deficient number, since it is larger than the sum of its proper divisors (59109778684).

78625251308 is a wasteful number, since it uses less digits than its factorization.

78625251308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20120032 (or 20120030 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 47.

The spelling of 78625251308 in words is "seventy-eight billion, six hundred twenty-five million, two hundred fifty-one thousand, three hundred eight".