23402998825 has 18 divisors (see below), whose sum is σ = 29425466042. Its totient is φ = 18460771200.

The previous prime is 23402998819. The next prime is 23402998867. The reversal of 23402998825 is 52889920432.

It can be written as a sum of positive squares in 9 ways, for example, as 60964864 + 23342033961 = 7808^2 + 152781^2 .

It is a de Polignac number, because none of the positive numbers 2^k-23402998825 is a prime.

It is a Duffinian number.

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 17 ways as a sum of consecutive naturals, for example, 6533535 + ... + 6537115.

Almost surely, 2^23402998825 is an apocalyptic number.

23402998825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

23402998825 is a deficient number, since it is larger than the sum of its proper divisors (6022467217).

23402998825 is an frugal number, since it uses more digits than its factorization.

23402998825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7245 (or 3659 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 52.

The spelling of 23402998825 in words is "twenty-three billion, four hundred two million, nine hundred ninety-eight thousand, eight hundred twenty-five".