2820426631 has 24 divisors (see below), whose sum is σ = 3181240832. Its totient is φ = 2497294800.

The previous prime is 2820426629. The next prime is 2820426647. The reversal of 2820426631 is 1366240282.

It is not a de Polignac number, because 2820426631 - 2¹ = 2820426629 is a prime.

It is a super-2 number, since 2×2820426631² = 15909612761708020322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2820426601) 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, 2845546 + ... + 2846536.

Almost surely, 2^2820426631 is an apocalyptic number.

2820426631 is a deficient number, since it is larger than the sum of its proper divisors (360814201).

2820426631 is a wasteful number, since it uses less digits than its factorization.

2820426631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1603 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 34.

The square root of 2820426631 is about 53107.6890007464. The cubic root of 2820426631 is about 1412.8788875354.

The spelling of 2820426631 in words is "two billion, eight hundred twenty million, four hundred twenty-six thousand, six hundred thirty-one".