13377391471256 has 16 divisors (see below), whose sum is σ = 25085865337200. Its totient is φ = 6687827381344.

The previous prime is 13377391471229. The next prime is 13377391471259. The reversal of 13377391471256 is 65217419377331.

It is a junction number, because it is equal to n+sod(n) for n = 13377391471195 and 13377391471204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13377391471259) 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, 108478811 + ... + 108602058.

It is an arithmetic number, because the mean of its divisors is an integer number (1567866583575).

Almost surely, 2^{13377391471256} is an apocalyptic number.

It is an amenable number.

13377391471256 is a deficient number, since it is larger than the sum of its proper divisors (11708473865944).

13377391471256 is a wasteful number, since it uses less digits than its factorization.

13377391471256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217088578 (or 217088574 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 59.

The spelling of 13377391471256 in words is "thirteen trillion, three hundred seventy-seven billion, three hundred ninety-one million, four hundred seventy-one thousand, two hundred fifty-six".