23420778075 has 24 divisors (see below), whose sum is σ = 43024838000. Its totient is φ = 12491081280.

The previous prime is 23420778047. The next prime is 23420778083. The reversal of 23420778075 is 57087702432.

It is not a de Polignac number, because 23420778075 - 2⁶ = 23420778011 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23420778075.

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 23 ways as a sum of consecutive naturals, for example, 17348050 + ... + 17349399.

Almost surely, 2^23420778075 is an apocalyptic number.

23420778075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

23420778075 is a deficient number, since it is larger than the sum of its proper divisors (19604059925).

23420778075 is a wasteful number, since it uses less digits than its factorization.

23420778075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34697468 (or 34697457 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 45.

The spelling of 23420778075 in words is "twenty-three billion, four hundred twenty million, seven hundred seventy-eight thousand, seventy-five".