23420939777 has 8 divisors (see below), whose sum is σ = 24259368000. Its totient is φ = 22584565584.

The previous prime is 23420939771. The next prime is 23420939783. The reversal of 23420939777 is 77793902432.

It is an interprime number because it is at equal distance from previous prime (23420939771) and next prime (23420939783).

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 23420939777 - 2¹⁸ = 23420677633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23420939771) 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, 490277 + ... + 535922.

It is an arithmetic number, because the mean of its divisors is an integer number (3032421000).

Almost surely, 2^23420939777 is an apocalyptic number.

It is an amenable number.

23420939777 is a deficient number, since it is larger than the sum of its proper divisors (838428223).

23420939777 is a wasteful number, since it uses less digits than its factorization.

23420939777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027015.

The product of its (nonzero) digits is 4000752, while the sum is 53.

The spelling of 23420939777 in words is "twenty-three billion, four hundred twenty million, nine hundred thirty-nine thousand, seven hundred seventy-seven".