13189531426 has 32 divisors (see below), whose sum is σ = 20491130880. Its totient is φ = 6364472400.

The previous prime is 13189531357. The next prime is 13189531471. The reversal of 13189531426 is 62413598131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382011 + ... + 1391521.

It is an arithmetic number, because the mean of its divisors is an integer number (640347840).

Almost surely, 2^13189531426 is an apocalyptic number.

13189531426 is a deficient number, since it is larger than the sum of its proper divisors (7301599454).

13189531426 is a wasteful number, since it uses less digits than its factorization.

13189531426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9790.

The product of its digits is 155520, while the sum is 43.

The spelling of 13189531426 in words is "thirteen billion, one hundred eighty-nine million, five hundred thirty-one thousand, four hundred twenty-six".