19021518932 has 24 divisors (see below), whose sum is σ = 36177141000. Its totient is φ = 8698617216.

The previous prime is 19021518917. The next prime is 19021518953. The reversal of 19021518932 is 23981512091.

It can be written as a sum of positive squares in 4 ways, for example, as 1609132996 + 17412385936 = 40114^2 + 131956^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 19021518932.

It is a congruent number.

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, 1672307 + ... + 1683642.

It is an arithmetic number, because the mean of its divisors is an integer number (1507380875).

Almost surely, 2^19021518932 is an apocalyptic number.

It is an amenable number.

19021518932 is a deficient number, since it is larger than the sum of its proper divisors (17155622068).

19021518932 is a wasteful number, since it uses less digits than its factorization.

19021518932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3356075 (or 3356073 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 41.

The spelling of 19021518932 in words is "nineteen billion, twenty-one million, five hundred eighteen thousand, nine hundred thirty-two".