36936920431 has 4 divisors (see below), whose sum is σ = 37633843512. Its totient is φ = 36239997352.

The previous prime is 36936920429. The next prime is 36936920443. The reversal of 36936920431 is 13402963963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13402963963 = 77563 ⋅172801.

It is a cyclic number.

It is not a de Polignac number, because 36936920431 - 2¹ = 36936920429 is a prime.

It is a super-2 number, since 2×36936920431² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36936920401) 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, 348461461 + ... + 348461566.

It is an arithmetic number, because the mean of its divisors is an integer number (9408460878).

Almost surely, 2^36936920431 is an apocalyptic number.

36936920431 is a deficient number, since it is larger than the sum of its proper divisors (696923081).

36936920431 is an equidigital number, since it uses as much as digits as its factorization.

36936920431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696923080.

The product of its (nonzero) digits is 629856, while the sum is 46.

The spelling of 36936920431 in words is "thirty-six billion, nine hundred thirty-six million, nine hundred twenty thousand, four hundred thirty-one".