23513739455 has 4 divisors (see below), whose sum is σ = 28216487352. Its totient is φ = 18810991560.

The previous prime is 23513739439. The next prime is 23513739461. The reversal of 23513739455 is 55493731532.

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

It is not a de Polignac number, because 23513739455 - 2⁴ = 23513739439 is a prime.

It is a Duffinian number.

It is a congruent 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, 2351373941 + ... + 2351373950.

It is an arithmetic number, because the mean of its divisors is an integer number (7054121838).

Almost surely, 2^23513739455 is an apocalyptic number.

23513739455 is a deficient number, since it is larger than the sum of its proper divisors (4702747897).

23513739455 is an equidigital number, since it uses as much as digits as its factorization.

23513739455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4702747896.

The product of its digits is 1701000, while the sum is 47.

The spelling of 23513739455 in words is "twenty-three billion, five hundred thirteen million, seven hundred thirty-nine thousand, four hundred fifty-five".