19275481920 has 112 divisors (see below), whose sum is σ = 62113290048. Its totient is φ = 5063393280.

The previous prime is 19275481919. The next prime is 19275482041. The reversal of 19275481920 is 2918457291.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 19275481920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85521 + ... + 214160.

Almost surely, 2^19275481920 is an apocalyptic number.

19275481920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19275481920 is an abundant number, since it is smaller than the sum of its proper divisors (42837808128).

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

19275481920 is a wasteful number, since it uses less digits than its factorization.

19275481920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299768 (or 299758 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 48.

The spelling of 19275481920 in words is "nineteen billion, two hundred seventy-five million, four hundred eighty-one thousand, nine hundred twenty".