19830915072 has 360 divisors, whose sum is σ = 63118678896. Its totient is φ = 6200229888.

The previous prime is 19830915067. The next prime is 19830915101. The reversal of 19830915072 is 27051903891.

19830915072 is a `hidden beast` number, since 198 + 309 + 150 + 7 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67682158 + ... + 67682450.

Almost surely, 2^19830915072 is an apocalyptic number.

19830915072 is a gapful number since it is divisible by the number (12) 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 19830915072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31559339448).

19830915072 is an abundant number, since it is smaller than the sum of its proper divisors (43287763824).

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

19830915072 is an frugal number, since it uses more digits than its factorization.

19830915072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 315 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The spelling of 19830915072 in words is "nineteen billion, eight hundred thirty million, nine hundred fifteen thousand, seventy-two".