19941852672 has 400 divisors, whose sum is σ = 69029322912. Its totient is φ = 5613649920.

The previous prime is 19941852653. The next prime is 19941852709. The reversal of 19941852672 is 27625814991.

It is a happy number.

19941852672 is a `hidden beast` number, since 1 + 9 + 9 + 41 + 8 + 526 + 72 = 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 39 ways as a sum of consecutive naturals, for example, 21191722 + ... + 21192662.

Almost surely, 2^19941852672 is an apocalyptic number.

19941852672 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 19941852672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34514661456).

19941852672 is an abundant number, since it is smaller than the sum of its proper divisors (49087470240).

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

19941852672 is an frugal number, since it uses more digits than its factorization.

19941852672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051 (or 1026 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 54.

The spelling of 19941852672 in words is "nineteen billion, nine hundred forty-one million, eight hundred fifty-two thousand, six hundred seventy-two".