13438196458 has 4 divisors (see below), whose sum is σ = 20157294690. Its totient is φ = 6719098228.

The previous prime is 13438196411. The next prime is 13438196461. The reversal of 13438196458 is 85469183431.

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., 7312473169 + 6125723289 = 85513^2 + 78267^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3359549113 + ... + 3359549116.

Almost surely, 2^13438196458 is an apocalyptic number.

13438196458 is a deficient number, since it is larger than the sum of its proper divisors (6719098232).

13438196458 is an equidigital number, since it uses as much as digits as its factorization.

13438196458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6719098231.

The product of its digits is 2488320, while the sum is 52.

The spelling of 13438196458 in words is "thirteen billion, four hundred thirty-eight million, one hundred ninety-six thousand, four hundred fifty-eight".