138535959074 has 16 divisors (see below), whose sum is σ = 208819956312. Its totient is φ = 68930055168.

The previous prime is 138535959019. The next prime is 138535959083. The reversal of 138535959074 is 470959535831.

It can be written as a sum of positive squares in 4 ways, for example, as 73309353049 + 65226606025 = 270757^2 + 255395^2 .

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, 184622 + ... + 557814.

Almost surely, 2^138535959074 is an apocalyptic number.

138535959074 is a deficient number, since it is larger than the sum of its proper divisors (70283997238).

138535959074 is a wasteful number, since it uses less digits than its factorization.

138535959074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374101.

The product of its (nonzero) digits is 20412000, while the sum is 59.

The spelling of 138535959074 in words is "one hundred thirty-eight billion, five hundred thirty-five million, nine hundred fifty-nine thousand, seventy-four".