36851607631 has 2 divisors, whose sum is σ = 36851607632. Its totient is φ = 36851607630.

The previous prime is 36851607601. The next prime is 36851607733. The reversal of 36851607631 is 13670615863.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36851607631 - 2¹³ = 36851599439 is a prime.

It is a super-2 number, since 2×36851607631² (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 (36851607601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18425803815 + 18425803816.

It is an arithmetic number, because the mean of its divisors is an integer number (18425803816).

Almost surely, 2^36851607631 is an apocalyptic number.

36851607631 is a deficient number, since it is larger than the sum of its proper divisors (1).

36851607631 is an equidigital number, since it uses as much as digits as its factorization.

36851607631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 36851607631 in words is "thirty-six billion, eight hundred fifty-one million, six hundred seven thousand, six hundred thirty-one".