23489995842 has 16 divisors (see below), whose sum is σ = 52199990880. Its totient is φ = 7829998596.

The previous prime is 23489995783. The next prime is 23489995883. The reversal of 23489995842 is 24859998432.

23489995842 is a `hidden beast` number, since 2 + 3 + 48 + 9 + 9 + 9 + 584 + 2 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 23489995842.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217499908 + ... + 217500015.

It is an arithmetic number, because the mean of its divisors is an integer number (3262499430).

Almost surely, 2^23489995842 is an apocalyptic number.

23489995842 is an abundant number, since it is smaller than the sum of its proper divisors (28709995038).

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

23489995842 is a wasteful number, since it uses less digits than its factorization.

23489995842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434999934 (or 434999928 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The spelling of 23489995842 in words is "twenty-three billion, four hundred eighty-nine million, nine hundred ninety-five thousand, eight hundred forty-two".