138901650129 has 24 divisors (see below), whose sum is σ = 219002775264. Its totient is φ = 84133800000.

The previous prime is 138901650113. The next prime is 138901650137. The reversal of 138901650129 is 921056109831.

138901650129 is a `hidden beast` number, since 1 + 38 + 90 + 1 + 6 + 501 + 29 = 666.

It is not a de Polignac number, because 138901650129 - 2⁴ = 138901650113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (138901650229) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 237247 + ... + 578004.

It is an arithmetic number, because the mean of its divisors is an integer number (9125115636).

Almost surely, 2^138901650129 is an apocalyptic number.

It is an amenable number.

138901650129 is a deficient number, since it is larger than the sum of its proper divisors (80101125135).

138901650129 is a wasteful number, since it uses less digits than its factorization.

138901650129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816989 (or 816986 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The spelling of 138901650129 in words is "one hundred thirty-eight billion, nine hundred one million, six hundred fifty thousand, one hundred twenty-nine".