36646431042 has 16 divisors (see below), whose sum is σ = 78930774720. Its totient is φ = 11275824912.

The previous prime is 36646431011. The next prime is 36646431067. The reversal of 36646431042 is 24013464663.

It is a super-2 number, since 2×36646431042² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234912942 + ... + 234913097.

It is an arithmetic number, because the mean of its divisors is an integer number (4933173420).

Almost surely, 2^36646431042 is an apocalyptic number.

36646431042 is an abundant number, since it is smaller than the sum of its proper divisors (42284343678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

36646431042 is a wasteful number, since it uses less digits than its factorization.

36646431042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469826057.

The product of its (nonzero) digits is 248832, while the sum is 39.

The spelling of 36646431042 in words is "thirty-six billion, six hundred forty-six million, four hundred thirty-one thousand, forty-two".