13057056377 has 4 divisors (see below), whose sum is σ = 13478251776. Its totient is φ = 12635860980.

The previous prime is 13057056347. The next prime is 13057056379. The reversal of 13057056377 is 77365075031.

13057056377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 77365075031 = 34313 ⋅2254687.

It is a cyclic number.

It is not a de Polignac number, because 13057056377 - 2²² = 13052862073 is a prime.

It is a super-2 number, since 2×13057056377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13057056379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210597653 + ... + 210597714.

It is an arithmetic number, because the mean of its divisors is an integer number (3369562944).

Almost surely, 2^13057056377 is an apocalyptic number.

It is an amenable number.

13057056377 is a deficient number, since it is larger than the sum of its proper divisors (421195399).

13057056377 is an equidigital number, since it uses as much as digits as its factorization.

13057056377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421195398.

The product of its (nonzero) digits is 463050, while the sum is 44.

The spelling of 13057056377 in words is "thirteen billion, fifty-seven million, fifty-six thousand, three hundred seventy-seven".