36494319591 has 12 divisors (see below), whose sum is σ = 52819663000. Its totient is φ = 24280786800.

The previous prime is 36494319527. The next prime is 36494319593. The reversal of 36494319591 is 19591349463.

It is a happy number.

36494319591 is a `hidden beast` number, since 3 + 6 + 4 + 9 + 43 + 1 + 9 + 591 = 666.

It is not a de Polignac number, because 36494319591 - 2⁶ = 36494319527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36494319593) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4058560 + ... + 4067541.

Almost surely, 2^36494319591 is an apocalyptic number.

36494319591 is a deficient number, since it is larger than the sum of its proper divisors (16325343409).

36494319591 is a wasteful number, since it uses less digits than its factorization.

36494319591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8126606 (or 8126603 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The spelling of 36494319591 in words is "thirty-six billion, four hundred ninety-four million, three hundred nineteen thousand, five hundred ninety-one".