23530021790 has 24 divisors (see below), whose sum is σ = 46554442200. Its totient is φ = 8556371120.

The previous prime is 23530021789. The next prime is 23530021807. The reversal of 23530021790 is 9712003532.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9721940 + ... + 9724359.

It is an arithmetic number, because the mean of its divisors is an integer number (1939768425).

Almost surely, 2^23530021790 is an apocalyptic number.

23530021790 is a deficient number, since it is larger than the sum of its proper divisors (23024420410).

23530021790 is a wasteful number, since it uses less digits than its factorization.

23530021790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19446328 (or 19446317 counting only the distinct ones).

The product of its (nonzero) digits is 11340, while the sum is 32.

The spelling of 23530021790 in words is "twenty-three billion, five hundred thirty million, twenty-one thousand, seven hundred ninety".