19002426816 has 112 divisors (see below), whose sum is σ = 50796748800. Its totient is φ = 6268953600.

The previous prime is 19002426803. The next prime is 19002426823. The reversal of 19002426816 is 61862420091.

It is a super-2 number, since 2×19002426816² (a number of 21 digits) contains 22 as substring.

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, 14605366 + ... + 14606666.

It is an arithmetic number, because the mean of its divisors is an integer number (453542400).

Almost surely, 2^19002426816 is an apocalyptic number.

19002426816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19002426816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25398374400).

19002426816 is an abundant number, since it is smaller than the sum of its proper divisors (31794321984).

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

19002426816 is a wasteful number, since it uses less digits than its factorization.

19002426816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042 (or 2032 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 39.

The spelling of 19002426816 in words is "nineteen billion, two million, four hundred twenty-six thousand, eight hundred sixteen".