23251780830 has 16 divisors (see below), whose sum is σ = 55804274064. Its totient is φ = 6200474880.

The previous prime is 23251780829. The next prime is 23251780837. The reversal of 23251780830 is 3808715232.

It is a Curzon number.

It is a congruent number.

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, 387529651 + ... + 387529710.

It is an arithmetic number, because the mean of its divisors is an integer number (3487767129).

Almost surely, 2^23251780830 is an apocalyptic number.

23251780830 is an abundant number, since it is smaller than the sum of its proper divisors (32552493234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23251780830 is a wasteful number, since it uses less digits than its factorization.

23251780830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775059371.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 23251780830 in words is "twenty-three billion, two hundred fifty-one million, seven hundred eighty thousand, eight hundred thirty".