13730374642 has 4 divisors (see below), whose sum is σ = 20595561966. Its totient is φ = 6865187320.

The previous prime is 13730374639. The next prime is 13730374687. The reversal of 13730374642 is 24647303731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24647303731 = 107 ⋅230348633.

It can be written as a sum of positive squares in only one way, i.e., 10681015801 + 3049358841 = 103349^2 + 55221^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13730374595 and 13730374604.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3432593659 + ... + 3432593662.

Almost surely, 2^13730374642 is an apocalyptic number.

13730374642 is a deficient number, since it is larger than the sum of its proper divisors (6865187324).

13730374642 is an equidigital number, since it uses as much as digits as its factorization.

13730374642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6865187323.

The product of its (nonzero) digits is 254016, while the sum is 40.

The spelling of 13730374642 in words is "thirteen billion, seven hundred thirty million, three hundred seventy-four thousand, six hundred forty-two".