138370692401 has 4 divisors (see below), whose sum is σ = 140266181412. Its totient is φ = 136475203392.

The previous prime is 138370692389. The next prime is 138370692497. The reversal of 138370692401 is 104296073831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80963011600 + 57407680801 = 284540^2 + 239599^2 .

It is a cyclic number.

It is not a de Polignac number, because 138370692401 - 2¹⁰ = 138370691377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138370692101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 947744396 + ... + 947744541.

It is an arithmetic number, because the mean of its divisors is an integer number (35066545353).

Almost surely, 2^138370692401 is an apocalyptic number.

It is an amenable number.

138370692401 is a deficient number, since it is larger than the sum of its proper divisors (1895489011).

138370692401 is an equidigital number, since it uses as much as digits as its factorization.

138370692401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1895489010.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 138370692401 in words is "one hundred thirty-eight billion, three hundred seventy million, six hundred ninety-two thousand, four hundred one".