23387928919 has 18 divisors (see below), whose sum is σ = 24240640200. Its totient is φ = 22564197216.

The previous prime is 23387928917. The next prime is 23387928929. The reversal of 23387928919 is 91982978332.

It is not a de Polignac number, because 23387928919 - 2¹ = 23387928917 is a prime.

It is a super-2 number, since 2×23387928919² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23387928917) by changing a digit.

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, 79822137 + ... + 79822429.

Almost surely, 2^23387928919 is an apocalyptic number.

23387928919 is a deficient number, since it is larger than the sum of its proper divisors (852711281).

23387928919 is an frugal number, since it uses more digits than its factorization.

23387928919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859 (or 529 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The spelling of 23387928919 in words is "twenty-three billion, three hundred eighty-seven million, nine hundred twenty-eight thousand, nine hundred nineteen".