38725439986 has 32 divisors (see below), whose sum is σ = 64210164480. Its totient is φ = 17423003136.

The previous prime is 38725439959. The next prime is 38725440031. The reversal of 38725439986 is 68993452783.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1785475 + ... + 1807033.

It is an arithmetic number, because the mean of its divisors is an integer number (2006567640).

Almost surely, 2^38725439986 is an apocalyptic number.

38725439986 is a deficient number, since it is larger than the sum of its proper divisors (25484724494).

38725439986 is a wasteful number, since it uses less digits than its factorization.

38725439986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23898.

The product of its digits is 78382080, while the sum is 64.

The spelling of 38725439986 in words is "thirty-eight billion, seven hundred twenty-five million, four hundred thirty-nine thousand, nine hundred eighty-six".