39668396051 has 16 divisors (see below), whose sum is σ = 40523208000. Its totient is φ = 38825474688.

The previous prime is 39668395999. The next prime is 39668396057. The reversal of 39668396051 is 15069386693.

It is a cyclic number.

It is not a de Polignac number, because 39668396051 - 2³⁰ = 38594654227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39668396057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2953850 + ... + 2967248.

It is an arithmetic number, because the mean of its divisors is an integer number (2532700500).

Almost surely, 2^39668396051 is an apocalyptic number.

39668396051 is a deficient number, since it is larger than the sum of its proper divisors (854811949).

39668396051 is a wasteful number, since it uses less digits than its factorization.

39668396051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13838.

The product of its (nonzero) digits is 6298560, while the sum is 56.

The spelling of 39668396051 in words is "thirty-nine billion, six hundred sixty-eight million, three hundred ninety-six thousand, fifty-one".