19098860690 has 48 divisors (see below), whose sum is σ = 42543828288. Its totient is φ = 6044470848.

The previous prime is 19098860653. The next prime is 19098860701. The reversal of 19098860690 is 9606889091.

It is a super-2 number, since 2×19098860690² (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, 795392 + ... + 819051.

It is an arithmetic number, because the mean of its divisors is an integer number (886329756).

Almost surely, 2^19098860690 is an apocalyptic number.

19098860690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19098860690 is an abundant number, since it is smaller than the sum of its proper divisors (23444967598).

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

19098860690 is a wasteful number, since it uses less digits than its factorization.

19098860690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614483 (or 1614470 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 56.

The spelling of 19098860690 in words is "nineteen billion, ninety-eight million, eight hundred sixty thousand, six hundred ninety".