22393861686677 has 4 divisors (see below), whose sum is σ = 24116466431820. Its totient is φ = 20671256941536.

The previous prime is 22393861686607. The next prime is 22393861686733. The reversal of 22393861686677 is 77668616839322.

It is a happy number.

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 10592980958596 + 11800880728081 = 3254686^2 + 3435241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22393861686677 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 (22393861686607) 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, 861302372552 + ... + 861302372577.

It is an arithmetic number, because the mean of its divisors is an integer number (6029116607955).

Almost surely, 2^{22393861686677} is an apocalyptic number.

It is an amenable number.

22393861686677 is a deficient number, since it is larger than the sum of its proper divisors (1722604745143).

22393861686677 is a wasteful number, since it uses less digits than its factorization.

22393861686677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1722604745142.

The product of its digits is 1316818944, while the sum is 74.

The spelling of 22393861686677 in words is "twenty-two trillion, three hundred ninety-three billion, eight hundred sixty-one million, six hundred eighty-six thousand, six hundred seventy-seven".