19848538320 has 80 divisors (see below), whose sum is σ = 66263592192. Its totient is φ = 4885793280.

The previous prime is 19848538313. The next prime is 19848538349. The reversal of 19848538320 is 2383584891.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3177736 + ... + 3183975.

Almost surely, 2^19848538320 is an apocalyptic number.

19848538320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19848538320 is an abundant number, since it is smaller than the sum of its proper divisors (46415053872).

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

19848538320 is a wasteful number, since it uses less digits than its factorization.

19848538320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6361740 (or 6361734 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 19848538320 in words is "nineteen billion, eight hundred forty-eight million, five hundred thirty-eight thousand, three hundred twenty".