13349086540 has 12 divisors (see below), whose sum is σ = 28033081776. Its totient is φ = 5339634608.

The previous prime is 13349086537. The next prime is 13349086549. The reversal of 13349086540 is 4568094331.

It is a super-2 number, since 2×13349086540² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13349086549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333727144 + ... + 333727183.

It is an arithmetic number, because the mean of its divisors is an integer number (2336090148).

Almost surely, 2^13349086540 is an apocalyptic number.

13349086540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13349086540 is an abundant number, since it is smaller than the sum of its proper divisors (14683995236).

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

13349086540 is a wasteful number, since it uses less digits than its factorization.

13349086540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667454336 (or 667454334 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 13349086540 in words is "thirteen billion, three hundred forty-nine million, eighty-six thousand, five hundred forty".