138490414436 has 24 divisors (see below), whose sum is σ = 264855497760. Its totient is φ = 62839544000.

The previous prime is 138490414429. The next prime is 138490414483. The reversal of 138490414436 is 634414094831.

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, 2740790 + ... + 2790861.

It is an arithmetic number, because the mean of its divisors is an integer number (11035645740).

Almost surely, 2^138490414436 is an apocalyptic number.

It is an amenable number.

138490414436 is a deficient number, since it is larger than the sum of its proper divisors (126365083324).

138490414436 is a wasteful number, since it uses less digits than its factorization.

138490414436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532235 (or 5532233 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 47.

The spelling of 138490414436 in words is "one hundred thirty-eight billion, four hundred ninety million, four hundred fourteen thousand, four hundred thirty-six".