5631326415640 has 32 divisors (see below), whose sum is σ = 12672359098560. Its totient is φ = 2252197292800.

The previous prime is 5631326415623. The next prime is 5631326415641. The reversal of 5631326415640 is 465146231365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5631326415641) 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, 10140976 + ... + 10681855.

It is an arithmetic number, because the mean of its divisors is an integer number (396011221830).

Almost surely, 2^{5631326415640} is an apocalyptic number.

It is an amenable number.

5631326415640 is an abundant number, since it is smaller than the sum of its proper divisors (7041032682920).

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

5631326415640 is a wasteful number, since it uses less digits than its factorization.

5631326415640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20829603 (or 20829599 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 5631326415640 in words is "five trillion, six hundred thirty-one billion, three hundred twenty-six million, four hundred fifteen thousand, six hundred forty".