19097191068 has 48 divisors (see below), whose sum is σ = 45753361920. Its totient is φ = 6195990400.

The previous prime is 19097191039. The next prime is 19097191073. The reversal of 19097191068 is 86019179091.

It is a self number, because there is not a number n which added to its sum of digits gives 19097191068.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167023 + ... + 257081.

It is an arithmetic number, because the mean of its divisors is an integer number (953195040).

Almost surely, 2^19097191068 is an apocalyptic number.

It is an amenable number.

19097191068 is an abundant number, since it is smaller than the sum of its proper divisors (26656170852).

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

19097191068 is a wasteful number, since it uses less digits than its factorization.

19097191068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90538 (or 90536 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 51.

The spelling of 19097191068 in words is "nineteen billion, ninety-seven million, one hundred ninety-one thousand, sixty-eight".