13145808574 has 4 divisors (see below), whose sum is σ = 19718712864. Its totient is φ = 6572904286.

The previous prime is 13145808553. The next prime is 13145808583. The reversal of 13145808574 is 47580854131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 47580854131 = 169307 ⋅281033.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3286452142 + ... + 3286452145.

It is an arithmetic number, because the mean of its divisors is an integer number (4929678216).

Almost surely, 2^13145808574 is an apocalyptic number.

13145808574 is a deficient number, since it is larger than the sum of its proper divisors (6572904290).

13145808574 is an equidigital number, since it uses as much as digits as its factorization.

13145808574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6572904289.

The product of its (nonzero) digits is 537600, while the sum is 46.

The spelling of 13145808574 in words is "thirteen billion, one hundred forty-five million, eight hundred eight thousand, five hundred seventy-four".