13787453426 has 4 divisors (see below), whose sum is σ = 20681180142. Its totient is φ = 6893726712.

The previous prime is 13787453419. The next prime is 13787453437. The reversal of 13787453426 is 62435478731.

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., 10231120201 + 3556333225 = 101149^2 + 59635^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3446863355 + ... + 3446863358.

Almost surely, 2^13787453426 is an apocalyptic number.

13787453426 is a deficient number, since it is larger than the sum of its proper divisors (6893726716).

13787453426 is an equidigital number, since it uses as much as digits as its factorization.

13787453426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6893726715.

The product of its digits is 3386880, while the sum is 50.

The spelling of 13787453426 in words is "thirteen billion, seven hundred eighty-seven million, four hundred fifty-three thousand, four hundred twenty-six".