19197001050 has 48 divisors (see below), whose sum is σ = 47617190400. Its totient is φ = 5118272640.

The previous prime is 19197001009. The next prime is 19197001073. The reversal of 19197001050 is 5010079191.

It is a happy number.

It is a super-2 number, since 2×19197001050² (a number of 21 digits) contains 22 as substring.

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, 1350279 + ... + 1364421.

It is an arithmetic number, because the mean of its divisors is an integer number (992024800).

Almost surely, 2^19197001050 is an apocalyptic number.

19197001050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19197001050 is an abundant number, since it is smaller than the sum of its proper divisors (28420189350).

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

19197001050 is a wasteful number, since it uses less digits than its factorization.

19197001050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23207 (or 23202 counting only the distinct ones).

The product of its (nonzero) digits is 2835, while the sum is 33.

The spelling of 19197001050 in words is "nineteen billion, one hundred ninety-seven million, one thousand, fifty".