23705399045 has 4 divisors (see below), whose sum is σ = 28446478860. Its totient is φ = 18964319232.

The previous prime is 23705399027. The next prime is 23705399087. The reversal of 23705399045 is 54099350732.

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 14411282209 + 9294116836 = 120047^2 + 96406^2 .

It is a cyclic number.

It is not a de Polignac number, because 23705399045 - 2¹⁸ = 23705136901 is a prime.

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, 2370539900 + ... + 2370539909.

It is an arithmetic number, because the mean of its divisors is an integer number (7111619715).

Almost surely, 2^23705399045 is an apocalyptic number.

It is an amenable number.

23705399045 is a deficient number, since it is larger than the sum of its proper divisors (4741079815).

23705399045 is an equidigital number, since it uses as much as digits as its factorization.

23705399045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741079814.

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 23705399045 in words is "twenty-three billion, seven hundred five million, three hundred ninety-nine thousand, forty-five".