368854374736661 has 4 divisors (see below), whose sum is σ = 402386590621824. Its totient is φ = 335322158851500.

The previous prime is 368854374736637. The next prime is 368854374736721. The reversal of 368854374736661 is 166637473458863.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-368854374736661 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 (368854374735661) 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, 16766107942565 + ... + 16766107942586.

It is an arithmetic number, because the mean of its divisors is an integer number (100596647655456).

Almost surely, 2^{368854374736661} is an apocalyptic number.

It is an amenable number.

368854374736661 is a deficient number, since it is larger than the sum of its proper divisors (33532215885163).

368854374736661 is a wasteful number, since it uses less digits than its factorization.

368854374736661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33532215885162.

The product of its digits is 8778792960, while the sum is 77.

The spelling of 368854374736661 in words is "three hundred sixty-eight trillion, eight hundred fifty-four billion, three hundred seventy-four million, seven hundred thirty-six thousand, six hundred sixty-one".