19020000168 has 96 divisors (see below), whose sum is σ = 55499644200. Its totient is φ = 5849708544.

The previous prime is 19020000151. The next prime is 19020000173. The reversal of 19020000168 is 86100002091.

It can be written as a sum of positive squares in 4 ways, for example, as 7520011524 + 11499988644 = 86718^2 + 107238^2 .

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, 4019628 + ... + 4024356.

Almost surely, 2^19020000168 is an apocalyptic number.

19020000168 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19020000168 is an abundant number, since it is smaller than the sum of its proper divisors (36479644032).

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

19020000168 is a wasteful number, since it uses less digits than its factorization.

19020000168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9051 (or 9044 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The spelling of 19020000168 in words is "nineteen billion, twenty million, one hundred sixty-eight", and thus it is an aban number.