23578776321 has 4 divisors (see below), whose sum is σ = 31438368432. Its totient is φ = 15719184212.

The previous prime is 23578776307. The next prime is 23578776367. The reversal of 23578776321 is 12367787532.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23578776321 - 2¹⁴ = 23578759937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23578776721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3929796051 + ... + 3929796056.

It is an arithmetic number, because the mean of its divisors is an integer number (7859592108).

Almost surely, 2^23578776321 is an apocalyptic number.

It is an amenable number.

23578776321 is a deficient number, since it is larger than the sum of its proper divisors (7859592111).

23578776321 is an equidigital number, since it uses as much as digits as its factorization.

23578776321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7859592110.

The product of its digits is 2963520, while the sum is 51.

The spelling of 23578776321 in words is "twenty-three billion, five hundred seventy-eight million, seven hundred seventy-six thousand, three hundred twenty-one".