36636491031 has 16 divisors (see below), whose sum is σ = 55987008000. Its totient is φ = 20875147488.

The previous prime is 36636491027. The next prime is 36636491039. The reversal of 36636491031 is 13019463663.

It is not a de Polignac number, because 36636491031 - 2² = 36636491027 is a prime.

It is a super-2 number, since 2×36636491031² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36636491039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2492091 + ... + 2506748.

It is an arithmetic number, because the mean of its divisors is an integer number (3499188000).

Almost surely, 2^36636491031 is an apocalyptic number.

36636491031 is a deficient number, since it is larger than the sum of its proper divisors (19350516969).

36636491031 is a wasteful number, since it uses less digits than its factorization.

36636491031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999198.

The product of its (nonzero) digits is 209952, while the sum is 42.

The spelling of 36636491031 in words is "thirty-six billion, six hundred thirty-six million, four hundred ninety-one thousand, thirty-one".