138412451418 has 32 divisors (see below), whose sum is σ = 277756987200. Its totient is φ = 45982270080.

The previous prime is 138412451407. The next prime is 138412451431. The reversal of 138412451418 is 814154214831.

It is a self number, because there is not a number n which added to its sum of digits gives 138412451418.

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, 4459413 + ... + 4490343.

It is an arithmetic number, because the mean of its divisors is an integer number (8679905850).

Almost surely, 2^138412451418 is an apocalyptic number.

138412451418 is an abundant number, since it is smaller than the sum of its proper divisors (139344535782).

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

138412451418 is a wasteful number, since it uses less digits than its factorization.

138412451418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33422.

The product of its digits is 122880, while the sum is 42.

The spelling of 138412451418 in words is "one hundred thirty-eight billion, four hundred twelve million, four hundred fifty-one thousand, four hundred eighteen".