19140699952 has 20 divisors (see below), whose sum is σ = 40456479816. Its totient is φ = 8700318080.

The previous prime is 19140699947. The next prime is 19140699983. The reversal of 19140699952 is 25999604191.

It is a junction number, because it is equal to n+sod(n) for n = 19140699893 and 19140699902.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54376813 + ... + 54377164.

Almost surely, 2^19140699952 is an apocalyptic number.

It is an amenable number.

19140699952 is an abundant number, since it is smaller than the sum of its proper divisors (21315779864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19140699952 is a wasteful number, since it uses less digits than its factorization.

19140699952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108753996 (or 108753990 counting only the distinct ones).

The product of its (nonzero) digits is 1574640, while the sum is 55.

The spelling of 19140699952 in words is "nineteen billion, one hundred forty million, six hundred ninety-nine thousand, nine hundred fifty-two".