23479688777 has 2 divisors, whose sum is σ = 23479688778. Its totient is φ = 23479688776.

The previous prime is 23479688773. The next prime is 23479688803. The reversal of 23479688777 is 77788697432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23462886976 + 16801801 = 153176^2 + 4099^2 .

It is a cyclic number.

It is not a de Polignac number, because 23479688777 - 2² = 23479688773 is a prime.

It is not a weakly prime, because it can be changed into another prime (23479688773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11739844388 + 11739844389.

It is an arithmetic number, because the mean of its divisors is an integer number (11739844389).

Almost surely, 2^23479688777 is an apocalyptic number.

It is an amenable number.

23479688777 is a deficient number, since it is larger than the sum of its proper divisors (1).

23479688777 is an equidigital number, since it uses as much as digits as its factorization.

23479688777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 199148544, while the sum is 68.

The spelling of 23479688777 in words is "twenty-three billion, four hundred seventy-nine million, six hundred eighty-eight thousand, seven hundred seventy-seven".