19139349160 has 64 divisors (see below), whose sum is σ = 44725870080. Its totient is φ = 7363249920.

The previous prime is 19139349157. The next prime is 19139349167. The reversal of 19139349160 is 6194393191.

It is a self number, because there is not a number n which added to its sum of digits gives 19139349160.

It is not an unprimeable number, because it can be changed into a prime (19139349167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154774 + ... + 249466.

It is an arithmetic number, because the mean of its divisors is an integer number (698841720).

Almost surely, 2^19139349160 is an apocalyptic number.

19139349160 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 19139349160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22362935040).

19139349160 is an abundant number, since it is smaller than the sum of its proper divisors (25586520920).

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

19139349160 is a wasteful number, since it uses less digits than its factorization.

19139349160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94898 (or 94894 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 46.

The spelling of 19139349160 in words is "nineteen billion, one hundred thirty-nine million, three hundred forty-nine thousand, one hundred sixty".