44631413657 has 2 divisors, whose sum is σ = 44631413658. Its totient is φ = 44631413656.

The previous prime is 44631413633. The next prime is 44631413663. The reversal of 44631413657 is 75631413644.

44631413657 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44630365081 + 1048576 = 211259^2 + 1024^2 .

It is a cyclic number.

It is not a de Polignac number, because 44631413657 - 2⁸ = 44631413401 is a prime.

It is a super-2 number, since 2×44631413657² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44631413677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22315706828 + 22315706829.

It is an arithmetic number, because the mean of its divisors is an integer number (22315706829).

Almost surely, 2^44631413657 is an apocalyptic number.

It is an amenable number.

44631413657 is a deficient number, since it is larger than the sum of its proper divisors (1).

44631413657 is an equidigital number, since it uses as much as digits as its factorization.

44631413657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 44.

The spelling of 44631413657 in words is "forty-four billion, six hundred thirty-one million, four hundred thirteen thousand, six hundred fifty-seven".