23621819403 has 48 divisors (see below), whose sum is σ = 39486725376. Its totient is φ = 12450231360.

The previous prime is 23621819381. The next prime is 23621819437. The reversal of 23621819403 is 30491812632.

It is not a de Polignac number, because 23621819403 - 2⁵ = 23621819371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (23621819443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2944668 + ... + 2952678.

It is an arithmetic number, because the mean of its divisors is an integer number (822640112).

Almost surely, 2^23621819403 is an apocalyptic number.

23621819403 is a deficient number, since it is larger than the sum of its proper divisors (15864905973).

23621819403 is a wasteful number, since it uses less digits than its factorization.

23621819403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9584 (or 9577 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The spelling of 23621819403 in words is "twenty-three billion, six hundred twenty-one million, eight hundred nineteen thousand, four hundred three".