40400070736631 has 2 divisors, whose sum is σ = 40400070736632. Its totient is φ = 40400070736630.

The previous prime is 40400070736603. The next prime is 40400070736699. The reversal of 40400070736631 is 13663707000404.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40400070736631 is a prime.

It is a super-2 number, since 2×40400070736631² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40400070736231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20200035368315 + 20200035368316.

It is an arithmetic number, because the mean of its divisors is an integer number (20200035368316).

Almost surely, 2^{40400070736631} is an apocalyptic number.

40400070736631 is a deficient number, since it is larger than the sum of its proper divisors (1).

40400070736631 is an equidigital number, since it uses as much as digits as its factorization.

40400070736631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 41.

The spelling of 40400070736631 in words is "forty trillion, four hundred billion, seventy million, seven hundred thirty-six thousand, six hundred thirty-one".