6312637644 has 24 divisors (see below), whose sum is σ = 14768362560. Its totient is φ = 2098659024.

The previous prime is 6312637609. The next prime is 6312637649. The reversal of 6312637644 is 4467362136.

It is a junction number, because it is equal to n+sod(n) for n = 6312637596 and 6312637605.

It is not an unprimeable number, because it can be changed into a prime (6312637649) 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, 689454 + ... + 698549.

It is an arithmetic number, because the mean of its divisors is an integer number (615348440).

Almost surely, 2^6312637644 is an apocalyptic number.

It is an amenable number.

6312637644 is an abundant number, since it is smaller than the sum of its proper divisors (8455724916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6312637644 is a wasteful number, since it uses less digits than its factorization.

6312637644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388389 (or 1388387 counting only the distinct ones).

The product of its digits is 435456, while the sum is 42.

The square root of 6312637644 is about 79452.1091224141. The cubic root of 6312637644 is about 1848.1488806892.

The spelling of 6312637644 in words is "six billion, three hundred twelve million, six hundred thirty-seven thousand, six hundred forty-four".