13377646452 has 24 divisors (see below), whose sum is σ = 31223320576. Its totient is φ = 4457956608.

The previous prime is 13377646421. The next prime is 13377646453. The reversal of 13377646452 is 25464677331.

It is a super-2 number, since 2×13377646452² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13377646453) 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, 112573 + ... + 198564.

Almost surely, 2^13377646452 is an apocalyptic number.

13377646452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13377646452 is an abundant number, since it is smaller than the sum of its proper divisors (17845674124).

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

13377646452 is a wasteful number, since it uses less digits than its factorization.

13377646452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314727 (or 314725 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 48.

The spelling of 13377646452 in words is "thirteen billion, three hundred seventy-seven million, six hundred forty-six thousand, four hundred fifty-two".