23033856385 has 4 divisors (see below), whose sum is σ = 27640627668. Its totient is φ = 18427085104.

The previous prime is 23033856371. The next prime is 23033856401. The reversal of 23033856385 is 58365833032.

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 16505054784 + 6528801601 = 128472^2 + 80801^2 .

It is a cyclic number.

It is not a de Polignac number, because 23033856385 - 2⁵ = 23033856353 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, 2303385634 + ... + 2303385643.

It is an arithmetic number, because the mean of its divisors is an integer number (6910156917).

Almost surely, 2^23033856385 is an apocalyptic number.

It is an amenable number.

23033856385 is a deficient number, since it is larger than the sum of its proper divisors (4606771283).

23033856385 is an equidigital number, since it uses as much as digits as its factorization.

23033856385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4606771282.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 23033856385 in words is "twenty-three billion, thirty-three million, eight hundred fifty-six thousand, three hundred eighty-five".