23378745519 has 24 divisors (see below), whose sum is σ = 34863658752. Its totient is φ = 15085154880.

The previous prime is 23378745497. The next prime is 23378745547. The reversal of 23378745519 is 91554787332.

23378745519 is a `hidden beast` number, since 2 + 3 + 3 + 7 + 87 + 4 + 551 + 9 = 666.

It is not a de Polignac number, because 23378745519 - 2⁵ = 23378745487 is a prime.

It is a super-2 number, since 2×23378745519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23378745569) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 120184 + ... + 247389.

It is an arithmetic number, because the mean of its divisors is an integer number (1452652448).

Almost surely, 2^23378745519 is an apocalyptic number.

23378745519 is a deficient number, since it is larger than the sum of its proper divisors (11484913233).

23378745519 is a wasteful number, since it uses less digits than its factorization.

23378745519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367807 (or 367804 counting only the distinct ones).

The product of its digits is 6350400, while the sum is 54.

The spelling of 23378745519 in words is "twenty-three billion, three hundred seventy-eight million, seven hundred forty-five thousand, five hundred nineteen".