40451550631 has 2 divisors, whose sum is σ = 40451550632. Its totient is φ = 40451550630.

The previous prime is 40451550619. The next prime is 40451550637. The reversal of 40451550631 is 13605515404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40451550631 - 2¹¹ = 40451548583 is a prime.

It is a super-2 number, since 2×40451550631² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40451550637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20225775315 + 20225775316.

It is an arithmetic number, because the mean of its divisors is an integer number (20225775316).

Almost surely, 2^40451550631 is an apocalyptic number.

40451550631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40451550631 is an equidigital number, since it uses as much as digits as its factorization.

40451550631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 40451550631 in words is "forty billion, four hundred fifty-one million, five hundred fifty thousand, six hundred thirty-one".