138764262118 has 64 divisors (see below), whose sum is σ = 227410799616. Its totient is φ = 63245952000.

The previous prime is 138764262107. The next prime is 138764262127. The reversal of 138764262118 is 811262467831.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143499271 + ... + 143500237.

It is an arithmetic number, because the mean of its divisors is an integer number (3553293744).

Almost surely, 2^138764262118 is an apocalyptic number.

138764262118 is a deficient number, since it is larger than the sum of its proper divisors (88646537498).

138764262118 is a wasteful number, since it uses less digits than its factorization.

138764262118 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669.

The product of its digits is 774144, while the sum is 49.

The spelling of 138764262118 in words is "one hundred thirty-eight billion, seven hundred sixty-four million, two hundred sixty-two thousand, one hundred eighteen".