19056663144 has 48 divisors (see below), whose sum is σ = 51983131200. Its totient is φ = 6306518304.

The previous prime is 19056663137. The next prime is 19056663161. The reversal of 19056663144 is 44136665091.

It is a self number, because there is not a number n which added to its sum of digits gives 19056663144.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942064 + ... + 962079.

It is an arithmetic number, because the mean of its divisors is an integer number (1082981900).

Almost surely, 2^19056663144 is an apocalyptic number.

It is an amenable number.

19056663144 is an abundant number, since it is smaller than the sum of its proper divisors (32926468056).

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

19056663144 is a wasteful number, since it uses less digits than its factorization.

19056663144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904294 (or 1904287 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The spelling of 19056663144 in words is "nineteen billion, fifty-six million, six hundred sixty-three thousand, one hundred forty-four".