19488757772 has 72 divisors (see below), whose sum is σ = 39594379440. Its totient is φ = 8322416640.

The previous prime is 19488757763. The next prime is 19488757807. The reversal of 19488757772 is 27775788491.

It is a junction number, because it is equal to n+sod(n) for n = 19488757699 and 19488757708.

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, 9777608 + ... + 9779600.

Almost surely, 2^19488757772 is an apocalyptic number.

It is an amenable number.

19488757772 is an abundant number, since it is smaller than the sum of its proper divisors (20105621668).

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

19488757772 is a wasteful number, since it uses less digits than its factorization.

19488757772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2811 (or 2792 counting only the distinct ones).

The product of its digits is 55319040, while the sum is 65.

The spelling of 19488757772 in words is "nineteen billion, four hundred eighty-eight million, seven hundred fifty-seven thousand, seven hundred seventy-two".