138736723524 has 48 divisors (see below), whose sum is σ = 370355478528. Its totient is φ = 39597183648.

The previous prime is 138736723501. The next prime is 138736723583. The reversal of 138736723524 is 425327637831.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 792484 + ... + 951579.

It is an arithmetic number, because the mean of its divisors is an integer number (7715739136).

Almost surely, 2^138736723524 is an apocalyptic number.

138736723524 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

138736723524 is an abundant number, since it is smaller than the sum of its proper divisors (231618755004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138736723524 is a wasteful number, since it uses less digits than its factorization.

138736723524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745024 (or 1745022 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 51.

The spelling of 138736723524 in words is "one hundred thirty-eight billion, seven hundred thirty-six million, seven hundred twenty-three thousand, five hundred twenty-four".