19226998672 has 240 divisors, whose sum is σ = 46865250432. Its totient is φ = 7600158720.

The previous prime is 19226998663. The next prime is 19226998709. The reversal of 19226998672 is 27689962291.

It is a self number, because there is not a number n which added to its sum of digits gives 19226998672.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 106226422 + ... + 106226602.

Almost surely, 2^19226998672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19226998672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23432625216).

19226998672 is an abundant number, since it is smaller than the sum of its proper divisors (27638251760).

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

19226998672 is a wasteful number, since it uses less digits than its factorization.

19226998672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 393 counting only the distinct ones).

The product of its digits is 11757312, while the sum is 61.

The spelling of 19226998672 in words is "nineteen billion, two hundred twenty-six million, nine hundred ninety-eight thousand, six hundred seventy-two".