19203996672 has 352 divisors, whose sum is σ = 66012311040. Its totient is φ = 5401313280.

The previous prime is 19203996667. The next prime is 19203996703. The reversal of 19203996672 is 27669930291.

19203996672 is a `hidden beast` number, since 192 + 0 + 399 + 6 + 67 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12966172 + ... + 12967652.

Almost surely, 2^19203996672 is an apocalyptic number.

19203996672 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 19203996672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33006155520).

19203996672 is an abundant number, since it is smaller than the sum of its proper divisors (46808314368).

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

19203996672 is a wasteful number, since it uses less digits than its factorization.

19203996672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584 (or 1560 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 19203996672 in words is "nineteen billion, two hundred three million, nine hundred ninety-six thousand, six hundred seventy-two".