39914645915 has 16 divisors (see below), whose sum is σ = 48819673728. Its totient is φ = 31322812416.

The previous prime is 39914645891. The next prime is 39914645923. The reversal of 39914645915 is 51954641993.

It is a cyclic number.

It is not a de Polignac number, because 39914645915 - 2¹⁸ = 39914383771 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 309347 + ... + 418956.

It is an arithmetic number, because the mean of its divisors is an integer number (3051229608).

Almost surely, 2^39914645915 is an apocalyptic number.

39914645915 is a deficient number, since it is larger than the sum of its proper divisors (8905027813).

39914645915 is a wasteful number, since it uses less digits than its factorization.

39914645915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728518.

The product of its digits is 5248800, while the sum is 56.

The spelling of 39914645915 in words is "thirty-nine billion, nine hundred fourteen million, six hundred forty-five thousand, nine hundred fifteen".