23400907777 has 8 divisors (see below), whose sum is σ = 25204581864. Its totient is φ = 21597748608.

The previous prime is 23400907771. The next prime is 23400907787. The reversal of 23400907777 is 77770900432.

It can be written as a sum of positive squares in 4 ways, for example, as 3205371456 + 20195536321 = 56616^2 + 142111^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23400907777 - 2³ = 23400907769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23400907771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31618 + ... + 218635.

It is an arithmetic number, because the mean of its divisors is an integer number (3150572733).

Almost surely, 2^23400907777 is an apocalyptic number.

It is an amenable number.

23400907777 is a deficient number, since it is larger than the sum of its proper divisors (1803674087).

23400907777 is a wasteful number, since it uses less digits than its factorization.

23400907777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257459.

The product of its (nonzero) digits is 518616, while the sum is 46.

The spelling of 23400907777 in words is "twenty-three billion, four hundred million, nine hundred seven thousand, seven hundred seventy-seven".