23402343977 has 2 divisors, whose sum is σ = 23402343978. Its totient is φ = 23402343976.

The previous prime is 23402343967. The next prime is 23402343989. The reversal of 23402343977 is 77934320432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11993754256 + 11408589721 = 109516^2 + 106811^2 .

It is a cyclic number.

It is not a de Polignac number, because 23402343977 - 2⁴ = 23402343961 is a prime.

It is not a weakly prime, because it can be changed into another prime (23402343907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11701171988 + 11701171989.

It is an arithmetic number, because the mean of its divisors is an integer number (11701171989).

Almost surely, 2^23402343977 is an apocalyptic number.

It is an amenable number.

23402343977 is a deficient number, since it is larger than the sum of its proper divisors (1).

23402343977 is an equidigital number, since it uses as much as digits as its factorization.

23402343977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 762048, while the sum is 44.

The spelling of 23402343977 in words is "twenty-three billion, four hundred two million, three hundred forty-three thousand, nine hundred seventy-seven".