39930516906 has 32 divisors (see below), whose sum is σ = 91294967808. Its totient is φ = 11405567280.

The previous prime is 39930516893. The next prime is 39930516917. The reversal of 39930516906 is 60961503993.

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, 24691 + ... + 283673.

It is an arithmetic number, because the mean of its divisors is an integer number (2852967744).

Almost surely, 2^39930516906 is an apocalyptic number.

39930516906 is an abundant number, since it is smaller than the sum of its proper divisors (51364450902).

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

39930516906 is a wasteful number, since it uses less digits than its factorization.

39930516906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262666.

The product of its (nonzero) digits is 1180980, while the sum is 51.

The spelling of 39930516906 in words is "thirty-nine billion, nine hundred thirty million, five hundred sixteen thousand, nine hundred six".