138356179602 has 32 divisors (see below), whose sum is σ = 281835002112. Its totient is φ = 45269818704.

The previous prime is 138356179579. The next prime is 138356179613. The reversal of 138356179602 is 206971653831.

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, 494308 + ... + 721839.

It is an arithmetic number, because the mean of its divisors is an integer number (8807343816).

Almost surely, 2^138356179602 is an apocalyptic number.

138356179602 is an abundant number, since it is smaller than the sum of its proper divisors (143478822510).

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

138356179602 is a wasteful number, since it uses less digits than its factorization.

138356179602 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1216502.

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 138356179602 in words is "one hundred thirty-eight billion, three hundred fifty-six million, one hundred seventy-nine thousand, six hundred two".