138601816262 has 32 divisors (see below), whose sum is σ = 255901703232. Its totient is φ = 54826896384.

The previous prime is 138601816253. The next prime is 138601816267. The reversal of 138601816262 is 262618106831.

It is a super-2 number, since 2×138601816262² (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 (138601816267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2872238 + ... + 2920094.

It is an arithmetic number, because the mean of its divisors is an integer number (7996928226).

Almost surely, 2^138601816262 is an apocalyptic number.

138601816262 is a deficient number, since it is larger than the sum of its proper divisors (117299886970).

138601816262 is a wasteful number, since it uses less digits than its factorization.

138601816262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63792.

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 138601816262 in words is "one hundred thirty-eight billion, six hundred one million, eight hundred sixteen thousand, two hundred sixty-two".