13204981972 has 216 divisors, whose sum is σ = 30431149056. Its totient is φ = 4992938496.

The previous prime is 13204981963. The next prime is 13204981981. The reversal of 13204981972 is 27918940231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13204981963) and next prime (13204981981).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 103976173 + ... + 103976299.

Almost surely, 2^13204981972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13204981972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15215574528).

13204981972 is an abundant number, since it is smaller than the sum of its proper divisors (17226167084).

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

13204981972 is a wasteful number, since it uses less digits than its factorization.

13204981972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 13204981972 in words is "thirteen billion, two hundred four million, nine hundred eighty-one thousand, nine hundred seventy-two".