23816691225 has 72 divisors (see below), whose sum is σ = 44302789440. Its totient is φ = 12683718720.

The previous prime is 23816691167. The next prime is 23816691233. The reversal of 23816691225 is 52219661832.

It is not a de Polignac number, because 23816691225 - 2¹⁷ = 23816560153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4839316 + ... + 4844234.

It is an arithmetic number, because the mean of its divisors is an integer number (615316520).

Almost surely, 2^23816691225 is an apocalyptic number.

23816691225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23816691225 is a deficient number, since it is larger than the sum of its proper divisors (20486098215).

23816691225 is an equidigital number, since it uses as much as digits as its factorization.

23816691225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5741 (or 5724 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The spelling of 23816691225 in words is "twenty-three billion, eight hundred sixteen million, six hundred ninety-one thousand, two hundred twenty-five".