23251780834 has 16 divisors (see below), whose sum is σ = 36127337400. Its totient is φ = 11210379264.

The previous prime is 23251780829. The next prime is 23251780837. The reversal of 23251780834 is 43808715232.

It can be written as a sum of positive squares in 4 ways, for example, as 22835743225 + 416037609 = 151115^2 + 20397^2 .

It is not an unprimeable number, because it can be changed into a prime (23251780837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216057 + ... + 305260.

Almost surely, 2^23251780834 is an apocalyptic number.

23251780834 is a deficient number, since it is larger than the sum of its proper divisors (12875556566).

23251780834 is a wasteful number, since it uses less digits than its factorization.

23251780834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522117.

The product of its (nonzero) digits is 322560, while the sum is 43.

The spelling of 23251780834 in words is "twenty-three billion, two hundred fifty-one million, seven hundred eighty thousand, eight hundred thirty-four".