368686622477 has 4 divisors (see below), whose sum is σ = 390374070876. Its totient is φ = 346999174080.

The previous prime is 368686622429. The next prime is 368686622497. The reversal of 368686622477 is 774226686863.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193710895876 + 174975726601 = 440126^2 + 418301^2 .

It is a cyclic number.

It is not a de Polignac number, because 368686622477 - 2⁸ = 368686622221 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 (368686622497) 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, 10843724174 + ... + 10843724207.

It is an arithmetic number, because the mean of its divisors is an integer number (97593517719).

Almost surely, 2^368686622477 is an apocalyptic number.

It is an amenable number.

368686622477 is a deficient number, since it is larger than the sum of its proper divisors (21687448399).

368686622477 is a wasteful number, since it uses less digits than its factorization.

368686622477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21687448398.

The product of its digits is 195084288, while the sum is 65.

The spelling of 368686622477 in words is "three hundred sixty-eight billion, six hundred eighty-six million, six hundred twenty-two thousand, four hundred seventy-seven".