23455670591 has 4 divisors (see below), whose sum is σ = 24089607672. Its totient is φ = 22821733512.

The previous prime is 23455670527. The next prime is 23455670597. The reversal of 23455670591 is 19507655432.

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

It is a cyclic number.

It is not a de Polignac number, because 23455670591 - 2⁶ = 23455670527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23455670597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316968485 + ... + 316968558.

It is an arithmetic number, because the mean of its divisors is an integer number (6022401918).

Almost surely, 2^23455670591 is an apocalyptic number.

23455670591 is a deficient number, since it is larger than the sum of its proper divisors (633937081).

23455670591 is an equidigital number, since it uses as much as digits as its factorization.

23455670591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633937080.

The product of its (nonzero) digits is 1134000, while the sum is 47.

The spelling of 23455670591 in words is "twenty-three billion, four hundred fifty-five million, six hundred seventy thousand, five hundred ninety-one".