2631426556 has 24 divisors (see below), whose sum is σ = 5028304176. Its totient is φ = 1194990720.

The previous prime is 2631426517. The next prime is 2631426557. The reversal of 2631426556 is 6556241362.

It is a happy number.

It is a super-2 number, since 2×2631426556² = 13848811439244042272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2631426557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21010 + ... + 75526.

It is an arithmetic number, because the mean of its divisors is an integer number (209512674).

Almost surely, 2^2631426556 is an apocalyptic number.

It is an amenable number.

2631426556 is a deficient number, since it is larger than the sum of its proper divisors (2396877620).

2631426556 is a wasteful number, since it uses less digits than its factorization.

2631426556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55629 (or 55627 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The square root of 2631426556 is about 51297.4322554258. The cubic root of 2631426556 is about 1380.5869092143.

The spelling of 2631426556 in words is "two billion, six hundred thirty-one million, four hundred twenty-six thousand, five hundred fifty-six".