19423045525 has 24 divisors (see below), whose sum is σ = 25988414760. Its totient is φ = 14314871040.

The previous prime is 19423045501. The next prime is 19423045553. The reversal of 19423045525 is 52554032491.

It can be written as a sum of positive squares in 12 ways, for example, as 2282737284 + 17140308241 = 47778^2 + 130921^2 .

It is not a de Polignac number, because 19423045525 - 2²³ = 19414656917 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 106719 + ... + 224131.

It is an arithmetic number, because the mean of its divisors is an integer number (1082850615).

Almost surely, 2^19423045525 is an apocalyptic number.

It is an amenable number.

19423045525 is a deficient number, since it is larger than the sum of its proper divisors (6565369235).

19423045525 is a wasteful number, since it uses less digits than its factorization.

19423045525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117945 (or 117940 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 19423045525 in words is "nineteen billion, four hundred twenty-three million, forty-five thousand, five hundred twenty-five".