19320556842 has 48 divisors (see below), whose sum is σ = 43733575080. Its totient is φ = 6156528000.

The previous prime is 19320556817. The next prime is 19320556859. The reversal of 19320556842 is 24865502391.

19320556842 is a `hidden beast` number, since 1 + 93 + 2 + 0 + 556 + 8 + 4 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19312382961 + 8173881 = 138969^2 + 2859^2 .

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, 130509 + ... + 235952.

Almost surely, 2^19320556842 is an apocalyptic number.

19320556842 is an abundant number, since it is smaller than the sum of its proper divisors (24413018238).

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

19320556842 is a wasteful number, since it uses less digits than its factorization.

19320556842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366599 (or 366596 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

It can be divided in two parts, 193205 and 56842, that added together give a cube (250047 = 63³).

The spelling of 19320556842 in words is "nineteen billion, three hundred twenty million, five hundred fifty-six thousand, eight hundred forty-two".