19790892000 has 672 divisors, whose sum is σ = 79662701664. Its totient is φ = 4790016000.

The previous prime is 19790891987. The next prime is 19790892061. The reversal of 19790892000 is 29809791.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 32075692 + ... + 32076308.

It is an arithmetic number, because the mean of its divisors is an integer number (118545687).

Almost surely, 2^19790892000 is an apocalyptic number.

19790892000 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 19790892000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39831350832).

19790892000 is an abundant number, since it is smaller than the sum of its proper divisors (59871809664).

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

19790892000 is an equidigital number, since it uses as much as digits as its factorization.

19790892000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 45.

The spelling of 19790892000 in words is "nineteen billion, seven hundred ninety million, eight hundred ninety-two thousand".