138062537456 has 20 divisors (see below), whose sum is σ = 269950263000. Its totient is φ = 68397953472.

The previous prime is 138062537453. The next prime is 138062537467. The reversal of 138062537456 is 654735260831.

It is a super-2 number, since 2×138062537456² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138062537453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39580406 + ... + 39583893.

It is an arithmetic number, because the mean of its divisors is an integer number (13497513150).

Almost surely, 2^138062537456 is an apocalyptic number.

138062537456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

138062537456 is a deficient number, since it is larger than the sum of its proper divisors (131887725544).

138062537456 is a wasteful number, since it uses less digits than its factorization.

138062537456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79164416 (or 79164410 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 50.

The spelling of 138062537456 in words is "one hundred thirty-eight billion, sixty-two million, five hundred thirty-seven thousand, four hundred fifty-six".