19810598112 has 384 divisors, whose sum is σ = 61993451520. Its totient is φ = 6144284160.

The previous prime is 19810598107. The next prime is 19810598141. The reversal of 19810598112 is 21189501891.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118626253 + ... + 118626419.

It is an arithmetic number, because the mean of its divisors is an integer number (161441280).

Almost surely, 2^19810598112 is an apocalyptic number.

19810598112 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 19810598112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30996725760).

19810598112 is an abundant number, since it is smaller than the sum of its proper divisors (42182853408).

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

19810598112 is a wasteful number, since it uses less digits than its factorization.

19810598112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363 (or 349 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 45.

The spelling of 19810598112 in words is "nineteen billion, eight hundred ten million, five hundred ninety-eight thousand, one hundred twelve".