3157373881 has 6 divisors (see below), whose sum is σ = 3201223470. Its totient is φ = 3114116928.

The previous prime is 3157373809. The next prime is 3157373893. The reversal of 3157373881 is 1883737513.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 675740025 + 2481633856 = 25995^2 + 49816^2 .

It is not a de Polignac number, because 3157373881 - 2¹⁵ = 3157341113 is a prime.

It is a super-2 number, since 2×3157373881² = 19938019648842004322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3157373381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290916 + ... + 301573.

It is an arithmetic number, because the mean of its divisors is an integer number (533537245).

Almost surely, 2^3157373881 is an apocalyptic number.

It is an amenable number.

3157373881 is a deficient number, since it is larger than the sum of its proper divisors (43849589).

3157373881 is an frugal number, since it uses more digits than its factorization.

3157373881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592635 (or 592562 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 3157373881 is about 56190.5141549710. The cubic root of 3157373881 is about 1467.0401642157.

The spelling of 3157373881 in words is "three billion, one hundred fifty-seven million, three hundred seventy-three thousand, eight hundred eighty-one".