13137645074 has 4 divisors (see below), whose sum is σ = 19706467614. Its totient is φ = 6568822536.

The previous prime is 13137644939. The next prime is 13137645107. The reversal of 13137645074 is 47054673131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 10425839449 + 2711805625 = 102107^2 + 52075^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3284411267 + ... + 3284411270.

Almost surely, 2^13137645074 is an apocalyptic number.

13137645074 is a deficient number, since it is larger than the sum of its proper divisors (6568822540).

13137645074 is an equidigital number, since it uses as much as digits as its factorization.

13137645074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6568822539.

The product of its (nonzero) digits is 211680, while the sum is 41.

The spelling of 13137645074 in words is "thirteen billion, one hundred thirty-seven million, six hundred forty-five thousand, seventy-four".