23104783720 has 32 divisors (see below), whose sum is σ = 53778378600. Its totient is φ = 8923226368.

The previous prime is 23104783717. The next prime is 23104783729. The reversal of 23104783720 is 2738740132.

It can be written as a sum of positive squares in 4 ways, for example, as 19862392356 + 3242391364 = 140934^2 + 56942^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 23104783720.

It is not an unprimeable number, because it can be changed into a prime (23104783729) 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, 9957799 + ... + 9960118.

Almost surely, 2^23104783720 is an apocalyptic number.

23104783720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23104783720 is an abundant number, since it is smaller than the sum of its proper divisors (30673594880).

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

23104783720 is a wasteful number, since it uses less digits than its factorization.

23104783720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19917957 (or 19917953 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 37.

The spelling of 23104783720 in words is "twenty-three billion, one hundred four million, seven hundred eighty-three thousand, seven hundred twenty".