19102079020 has 96 divisors (see below), whose sum is σ = 43788830400. Its totient is φ = 6971940864.

The previous prime is 19102078997. The next prime is 19102079023. The reversal of 19102079020 is 2097020191.

It is not an unprimeable number, because it can be changed into a prime (19102079023) 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, 5034244 + ... + 5038036.

It is an arithmetic number, because the mean of its divisors is an integer number (456133650).

Almost surely, 2^19102079020 is an apocalyptic number.

19102079020 is a gapful number since it is divisible by the number (10) 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 19102079020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21894415200).

19102079020 is an abundant number, since it is smaller than the sum of its proper divisors (24686751380).

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

19102079020 is a wasteful number, since it uses less digits than its factorization.

19102079020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307 (or 4305 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The spelling of 19102079020 in words is "nineteen billion, one hundred two million, seventy-nine thousand, twenty".