39278120412 has 48 divisors (see below), whose sum is σ = 92967822080. Its totient is φ = 12904541568.

The previous prime is 39278120369. The next prime is 39278120467. The reversal of 39278120412 is 21402187293.

It is a congruent number.

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, 1337139 + ... + 1366197.

Almost surely, 2^39278120412 is an apocalyptic number.

It is an amenable number.

39278120412 is an abundant number, since it is smaller than the sum of its proper divisors (53689701668).

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

39278120412 is a wasteful number, since it uses less digits than its factorization.

39278120412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30682 (or 30680 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 39278120412 in words is "thirty-nine billion, two hundred seventy-eight million, one hundred twenty thousand, four hundred twelve".