13481493720 has 64 divisors (see below), whose sum is σ = 41430947040. Its totient is φ = 3507379200.

The previous prime is 13481493691. The next prime is 13481493793. The reversal of 13481493720 is 2739418431.

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, 1365151 + ... + 1374990.

Almost surely, 2^13481493720 is an apocalyptic number.

13481493720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13481493720 is an abundant number, since it is smaller than the sum of its proper divisors (27949453320).

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

13481493720 is a wasteful number, since it uses less digits than its factorization.

13481493720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2740196 (or 2740192 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 13481493720 in words is "thirteen billion, four hundred eighty-one million, four hundred ninety-three thousand, seven hundred twenty".