13451219988 has 24 divisors (see below), whose sum is σ = 32468462880. Its totient is φ = 4329128160.

The previous prime is 13451219963. The next prime is 13451219989. The reversal of 13451219988 is 88991215431.

It is a self number, because there is not a number n which added to its sum of digits gives 13451219988.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13451219989) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19326118 + ... + 19326813.

It is an arithmetic number, because the mean of its divisors is an integer number (1352852620).

Almost surely, 2^13451219988 is an apocalyptic number.

It is an amenable number.

13451219988 is an abundant number, since it is smaller than the sum of its proper divisors (19017242892).

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

13451219988 is a wasteful number, since it uses less digits than its factorization.

13451219988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38652967 (or 38652965 counting only the distinct ones).

The product of its digits is 622080, while the sum is 51.

The spelling of 13451219988 in words is "thirteen billion, four hundred fifty-one million, two hundred nineteen thousand, nine hundred eighty-eight".