36868794978693 has 4 divisors (see below), whose sum is σ = 49158393304928. Its totient is φ = 24579196652460.

The previous prime is 36868794978619. The next prime is 36868794978727. The reversal of 36868794978693 is 39687949786863.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 36868794978693 - 2²⁹ = 36868258107781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 36868794978597 and 36868794978606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36868794978193) 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, 6144799163113 + ... + 6144799163118.

It is an arithmetic number, because the mean of its divisors is an integer number (12289598326232).

Almost surely, 2^{36868794978693} is an apocalyptic number.

It is an amenable number.

36868794978693 is a deficient number, since it is larger than the sum of its proper divisors (12289598326235).

36868794978693 is a wasteful number, since it uses less digits than its factorization.

36868794978693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12289598326234.

The product of its digits is 142216445952, while the sum is 93.

The spelling of 36868794978693 in words is "thirty-six trillion, eight hundred sixty-eight billion, seven hundred ninety-four million, nine hundred seventy-eight thousand, six hundred ninety-three".