36991936538 has 8 divisors (see below), whose sum is σ = 55490691360. Its totient is φ = 18495039420.

The previous prime is 36991936537. The next prime is 36991936543. The reversal of 36991936538 is 83563919963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (36991936537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 413528 + ... + 494963.

It is an arithmetic number, because the mean of its divisors is an integer number (6936336420).

Almost surely, 2^36991936538 is an apocalyptic number.

36991936538 is a deficient number, since it is larger than the sum of its proper divisors (18498754822).

36991936538 is a wasteful number, since it uses less digits than its factorization.

36991936538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928852.

The product of its digits is 28343520, while the sum is 62.

The spelling of 36991936538 in words is "thirty-six billion, nine hundred ninety-one million, nine hundred thirty-six thousand, five hundred thirty-eight".