138295592831 has 8 divisors (see below), whose sum is σ = 150890256000. Its totient is φ = 125704652440.

The previous prime is 138295592789. The next prime is 138295592843.

It is a happy number.

138295592831 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 138295592831 - 2⁶ = 138295592767 is a prime.

It is a super-2 number, since 2×138295592831² (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 (138295592231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 852731 + ... + 1001868.

It is an arithmetic number, because the mean of its divisors is an integer number (18861282000).

Almost surely, 2^138295592831 is an apocalyptic number.

138295592831 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

138295592831 is a deficient number, since it is larger than the sum of its proper divisors (12594663169).

138295592831 is a wasteful number, since it uses less digits than its factorization.

138295592831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1861389.

The product of its digits is 4665600, while the sum is 56.

The spelling of 138295592831 in words is "one hundred thirty-eight billion, two hundred ninety-five million, five hundred ninety-two thousand, eight hundred thirty-one".