23851790605 has 16 divisors (see below), whose sum is σ = 29168578224. Its totient is φ = 18717304320.

The previous prime is 23851790591. The next prime is 23851790663. The reversal of 23851790605 is 50609715832.

It can be written as a sum of positive squares in 8 ways, for example, as 5684255236 + 18167535369 = 75394^2 + 134787^2 .

It is not a de Polignac number, because 23851790605 - 2²¹ = 23849693453 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 15 ways as a sum of consecutive naturals, for example, 1895635 + ... + 1908175.

It is an arithmetic number, because the mean of its divisors is an integer number (1823036139).

Almost surely, 2^23851790605 is an apocalyptic number.

It is an amenable number.

23851790605 is a deficient number, since it is larger than the sum of its proper divisors (5316787619).

23851790605 is a wasteful number, since it uses less digits than its factorization.

23851790605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19776.

The product of its (nonzero) digits is 453600, while the sum is 46.

The spelling of 23851790605 in words is "twenty-three billion, eight hundred fifty-one million, seven hundred ninety thousand, six hundred five".