2681442631 has 16 divisors (see below), whose sum is σ = 3234888000. Its totient is φ = 2219116704.

The previous prime is 2681442629. The next prime is 2681442661. The reversal of 2681442631 is 1362441862.

It is not a de Polignac number, because 2681442631 - 2¹ = 2681442629 is a prime.

It is a super-2 number, since 2×2681442631² = 14380269166688404322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681442601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124840 + ... + 144733.

It is an arithmetic number, because the mean of its divisors is an integer number (202180500).

Almost surely, 2^2681442631 is an apocalyptic number.

2681442631 is a deficient number, since it is larger than the sum of its proper divisors (553445369).

2681442631 is an equidigital number, since it uses as much as digits as its factorization.

2681442631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269623 (or 269609 counting only the distinct ones).

The product of its digits is 55296, while the sum is 37.

The square root of 2681442631 is about 51782.6479720765. The cubic root of 2681442631 is about 1389.2791029202.

The spelling of 2681442631 in words is "two billion, six hundred eighty-one million, four hundred forty-two thousand, six hundred thirty-one".