99634290631 has 2 divisors, whose sum is σ = 99634290632. Its totient is φ = 99634290630.

The previous prime is 99634290611. The next prime is 99634290689. The reversal of 99634290631 is 13609243699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 99634290631 - 2¹³ = 99634282439 is a prime.

It is a super-2 number, since 2×99634290631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99634290601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49817145315 + 49817145316.

It is an arithmetic number, because the mean of its divisors is an integer number (49817145316).

Almost surely, 2^99634290631 is an apocalyptic number.

99634290631 is a deficient number, since it is larger than the sum of its proper divisors (1).

99634290631 is an equidigital number, since it uses as much as digits as its factorization.

99634290631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1889568, while the sum is 52.

The spelling of 99634290631 in words is "ninety-nine billion, six hundred thirty-four million, two hundred ninety thousand, six hundred thirty-one".