19139773380 has 288 divisors, whose sum is σ = 70058628864. Its totient is φ = 3862526976.

The previous prime is 19139773361. The next prime is 19139773417. The reversal of 19139773380 is 8337793191.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 868174 + ... + 889946.

It is an arithmetic number, because the mean of its divisors is an integer number (243259128).

Almost surely, 2^19139773380 is an apocalyptic number.

19139773380 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 19139773380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35029314432).

19139773380 is an abundant number, since it is smaller than the sum of its proper divisors (50918855484).

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

19139773380 is a wasteful number, since it uses less digits than its factorization.

19139773380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21835 (or 21826 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 51.

The spelling of 19139773380 in words is "nineteen billion, one hundred thirty-nine million, seven hundred seventy-three thousand, three hundred eighty".