138644993014 has 16 divisors (see below), whose sum is σ = 226903599360. Its totient is φ = 63012125160.

The previous prime is 138644992963. The next prime is 138644993029. The reversal of 138644993014 is 410399446831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244434 + ... + 580549.

It is an arithmetic number, because the mean of its divisors is an integer number (14181474960).

Almost surely, 2^138644993014 is an apocalyptic number.

138644993014 is a deficient number, since it is larger than the sum of its proper divisors (88258606346).

138644993014 is a wasteful number, since it uses less digits than its factorization.

138644993014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832635.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 138644993014 in words is "one hundred thirty-eight billion, six hundred forty-four million, nine hundred ninety-three thousand, fourteen".