363636400040 has 32 divisors (see below), whose sum is σ = 818851006080. Its totient is φ = 145335607872.

The previous prime is 363636400033. The next prime is 363636400111. The reversal of 363636400040 is 40004636363.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3667724 + ... + 3765563.

It is an arithmetic number, because the mean of its divisors is an integer number (25589093940).

Almost surely, 2^363636400040 is an apocalyptic number.

It is an amenable number.

363636400040 is an abundant number, since it is smaller than the sum of its proper divisors (455214606040).

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

363636400040 is a wasteful number, since it uses less digits than its factorization.

363636400040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7434521 (or 7434517 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

The spelling of 363636400040 in words is "three hundred sixty-three billion, six hundred thirty-six million, four hundred thousand, forty".