13476456221257 has 16 divisors (see below), whose sum is σ = 13853010225600. Its totient is φ = 13102248924160.

The previous prime is 13476456221243. The next prime is 13476456221281. The reversal of 13476456221257 is 75212265467431.

It is a cyclic number.

It is not a de Polignac number, because 13476456221257 - 2³¹ = 13474308737609 is a prime.

It is a super-2 number, since 2×13476456221257² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13476456221198 and 13476456221207.

It is not an unprimeable number, because it can be changed into a prime (13476456221287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15537078 + ... + 16381504.

It is an arithmetic number, because the mean of its divisors is an integer number (865813139100).

Almost surely, 2^{13476456221257} is an apocalyptic number.

It is an amenable number.

13476456221257 is a deficient number, since it is larger than the sum of its proper divisors (376554004343).

13476456221257 is an equidigital number, since it uses as much as digits as its factorization.

13476456221257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845816.

The product of its digits is 16934400, while the sum is 55.

The spelling of 13476456221257 in words is "thirteen trillion, four hundred seventy-six billion, four hundred fifty-six million, two hundred twenty-one thousand, two hundred fifty-seven".