940907736631 has 2 divisors, whose sum is σ = 940907736632. Its totient is φ = 940907736630.

The previous prime is 940907736611. The next prime is 940907736679. The reversal of 940907736631 is 136637709049.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940907736631 is a prime.

It is a super-2 number, since 2×940907736631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940907736611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470453868315 + 470453868316.

It is an arithmetic number, because the mean of its divisors is an integer number (470453868316).

Almost surely, 2^940907736631 is an apocalyptic number.

940907736631 is a deficient number, since it is larger than the sum of its proper divisors (1).

940907736631 is an equidigital number, since it uses as much as digits as its factorization.

940907736631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5143824, while the sum is 55.

The spelling of 940907736631 in words is "nine hundred forty billion, nine hundred seven million, seven hundred thirty-six thousand, six hundred thirty-one".