36646429412 has 12 divisors (see below), whose sum is σ = 64145788476. Its totient is φ = 18319061280.

The previous prime is 36646429397. The next prime is 36646429433. The reversal of 36646429412 is 21492464663.

It can be written as a sum of positive squares in 2 ways, for example, as 24613216996 + 12033212416 = 156886^2 + 109696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1018463 + ... + 1053830.

It is an arithmetic number, because the mean of its divisors is an integer number (5345482373).

Almost surely, 2^36646429412 is an apocalyptic number.

It is an amenable number.

36646429412 is a deficient number, since it is larger than the sum of its proper divisors (27499359064).

36646429412 is a wasteful number, since it uses less digits than its factorization.

36646429412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2076718 (or 2076716 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 47.

The spelling of 36646429412 in words is "thirty-six billion, six hundred forty-six million, four hundred twenty-nine thousand, four hundred twelve".