19932893920 has 192 divisors, whose sum is σ = 50386613760. Its totient is φ = 7430400000.

The previous prime is 19932893831. The next prime is 19932893921. The reversal of 19932893920 is 2939823991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19932893921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79413795 + ... + 79414045.

It is an arithmetic number, because the mean of its divisors is an integer number (262430280).

Almost surely, 2^19932893920 is an apocalyptic number.

19932893920 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 19932893920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25193306880).

19932893920 is an abundant number, since it is smaller than the sum of its proper divisors (30453719840).

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

19932893920 is a wasteful number, since it uses less digits than its factorization.

19932893920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 601 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 55.

The spelling of 19932893920 in words is "nineteen billion, nine hundred thirty-two million, eight hundred ninety-three thousand, nine hundred twenty".