19090230768 has 160 divisors (see below), whose sum is σ = 62907084800. Its totient is φ = 5429700864.

The previous prime is 19090230763. The next prime is 19090230773. The reversal of 19090230768 is 86703209091.

It is an interprime number because it is at equal distance from previous prime (19090230763) and next prime (19090230773).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19090230763) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 660198 + ... + 688506.

It is an arithmetic number, because the mean of its divisors is an integer number (393169280).

Almost surely, 2^19090230768 is an apocalyptic number.

19090230768 is a gapful number since it is divisible by the number (18) 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 19090230768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31453542400).

19090230768 is an abundant number, since it is smaller than the sum of its proper divisors (43816854032).

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

19090230768 is a wasteful number, since it uses less digits than its factorization.

19090230768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28556 (or 28544 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The spelling of 19090230768 in words is "nineteen billion, ninety million, two hundred thirty thousand, seven hundred sixty-eight".