36990397568 has 16 divisors (see below), whose sum is σ = 73691807910. Its totient is φ = 18495198720.

The previous prime is 36990397559. The next prime is 36990397583. The reversal of 36990397568 is 86579309963.

It can be written as a sum of positive squares in only one way, i.e., 36805655104 + 184742464 = 191848^2 + 13592^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-3 number, since 3×36990397568³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144493613 + ... + 144493868.

Almost surely, 2^36990397568 is an apocalyptic number.

It is an amenable number.

36990397568 is a deficient number, since it is larger than the sum of its proper divisors (36701410342).

36990397568 is an equidigital number, since it uses as much as digits as its factorization.

36990397568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288987495 (or 288987483 counting only the distinct ones).

The product of its (nonzero) digits is 66134880, while the sum is 65.

The spelling of 36990397568 in words is "thirty-six billion, nine hundred ninety million, three hundred ninety-seven thousand, five hundred sixty-eight".