23662742465 has 4 divisors (see below), whose sum is σ = 28395290964. Its totient is φ = 18930193968.

The previous prime is 23662742449. The next prime is 23662742507. The reversal of 23662742465 is 56424726632.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3403205569 + 20259536896 = 58337^2 + 142336^2 .

It is a cyclic number.

It is not a de Polignac number, because 23662742465 - 2⁴ = 23662742449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366274242 + ... + 2366274251.

It is an arithmetic number, because the mean of its divisors is an integer number (7098822741).

Almost surely, 2^23662742465 is an apocalyptic number.

It is an amenable number.

23662742465 is a deficient number, since it is larger than the sum of its proper divisors (4732548499).

23662742465 is an equidigital number, since it uses as much as digits as its factorization.

23662742465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732548498.

The product of its digits is 2903040, while the sum is 47.

The spelling of 23662742465 in words is "twenty-three billion, six hundred sixty-two million, seven hundred forty-two thousand, four hundred sixty-five".