19832996988 has 48 divisors (see below), whose sum is σ = 58764437760. Its totient is φ = 5666570352.

The previous prime is 19832996983. The next prime is 19832996999. The reversal of 19832996988 is 88969923891.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19832996983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13116306 + ... + 13117817.

It is an arithmetic number, because the mean of its divisors is an integer number (1224259120).

Almost surely, 2^19832996988 is an apocalyptic number.

19832996988 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

19832996988 is an abundant number, since it is smaller than the sum of its proper divisors (38931440772).

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

19832996988 is a wasteful number, since it uses less digits than its factorization.

19832996988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26234143 (or 26234135 counting only the distinct ones).

The product of its digits is 120932352, while the sum is 72.

The spelling of 19832996988 in words is "nineteen billion, eight hundred thirty-two million, nine hundred ninety-six thousand, nine hundred eighty-eight".