13491913020 has 48 divisors (see below), whose sum is σ = 39080028960. Its totient is φ = 3473779456.

The previous prime is 13491913003. The next prime is 13491913051. The reversal of 13491913020 is 2031919431.

It is a happy number.

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, 3875247 + ... + 3878726.

It is an arithmetic number, because the mean of its divisors is an integer number (814167270).

Almost surely, 2^13491913020 is an apocalyptic number.

13491913020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13491913020 is an abundant number, since it is smaller than the sum of its proper divisors (25588115940).

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

13491913020 is a wasteful number, since it uses less digits than its factorization.

13491913020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7754014 (or 7754012 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 33.

The spelling of 13491913020 in words is "thirteen billion, four hundred ninety-one million, nine hundred thirteen thousand, twenty".