13393878280 has 16 divisors (see below), whose sum is σ = 30136226220. Its totient is φ = 5357551296.

The previous prime is 13393878271. The next prime is 13393878301. The reversal of 13393878280 is 8287839331.

It can be written as a sum of positive squares in 2 ways, for example, as 12944523076 + 449355204 = 113774^2 + 21198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167423439 + ... + 167423518.

Almost surely, 2^13393878280 is an apocalyptic number.

13393878280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13393878280 is an abundant number, since it is smaller than the sum of its proper divisors (16742347940).

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

13393878280 is a wasteful number, since it uses less digits than its factorization.

13393878280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334846968 (or 334846964 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 52.

The spelling of 13393878280 in words is "thirteen billion, three hundred ninety-three million, eight hundred seventy-eight thousand, two hundred eighty".