14387640004 has 12 divisors (see below), whose sum is σ = 25181920764. Its totient is φ = 7192805504.

The previous prime is 14387639947. The next prime is 14387640019. The reversal of 14387640004 is 40004678341.

It can be written as a sum of positive squares in 2 ways, for example, as 2011522500 + 12376117504 = 44850^2 + 111248^2 .

It is a super-2 number, since 2×14387640004² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221257 + ... + 278800.

It is an arithmetic number, because the mean of its divisors is an integer number (2098493397).

Almost surely, 2^14387640004 is an apocalyptic number.

It is an amenable number.

14387640004 is a deficient number, since it is larger than the sum of its proper divisors (10794280760).

14387640004 is a wasteful number, since it uses less digits than its factorization.

14387640004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507254 (or 507252 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 14387640004 in words is "fourteen billion, three hundred eighty-seven million, six hundred forty thousand, four".