39856147212 has 24 divisors (see below), whose sum is σ = 106283059456. Its totient is φ = 11387470608.

The previous prime is 39856147211. The next prime is 39856147217. The reversal of 39856147212 is 21274165893.

It is not an unprimeable number, because it can be changed into a prime (39856147211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 237238888 + ... + 237239055.

Almost surely, 2^39856147212 is an apocalyptic number.

It is an amenable number.

39856147212 is an abundant number, since it is smaller than the sum of its proper divisors (66426912244).

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

39856147212 is a wasteful number, since it uses less digits than its factorization.

39856147212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 474477957 (or 474477955 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 39856147212 in words is "thirty-nine billion, eight hundred fifty-six million, one hundred forty-seven thousand, two hundred twelve".