23577364477 has 2 divisors, whose sum is σ = 23577364478. Its totient is φ = 23577364476.

The previous prime is 23577364471. The next prime is 23577364513. The reversal of 23577364477 is 77446377532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15561564516 + 8015799961 = 124746^2 + 89531^2 .

It is a cyclic number.

It is not a de Polignac number, because 23577364477 - 2²³ = 23568975869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23577364471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11788682238 + 11788682239.

It is an arithmetic number, because the mean of its divisors is an integer number (11788682239).

Almost surely, 2^23577364477 is an apocalyptic number.

It is an amenable number.

23577364477 is a deficient number, since it is larger than the sum of its proper divisors (1).

23577364477 is an equidigital number, since it uses as much as digits as its factorization.

23577364477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20744640, while the sum is 55.

The spelling of 23577364477 in words is "twenty-three billion, five hundred seventy-seven million, three hundred sixty-four thousand, four hundred seventy-seven".