19061561200 has 60 divisors (see below), whose sum is σ = 49958630568. Its totient is φ = 6931475200.

The previous prime is 19061561179. The next prime is 19061561227. The reversal of 19061561200 is 216516091.

It is a congruent number.

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, 2161687 + ... + 2170486.

Almost surely, 2^19061561200 is an apocalyptic number.

19061561200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19061561200 is an abundant number, since it is smaller than the sum of its proper divisors (30897069368).

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

19061561200 is a wasteful number, since it uses less digits than its factorization.

19061561200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4332202 (or 4332191 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 19061561200 in words is "nineteen billion, sixty-one million, five hundred sixty-one thousand, two hundred".