13634222554 has 4 divisors (see below), whose sum is σ = 20451333834. Its totient is φ = 6817111276.

The previous prime is 13634222551. The next prime is 13634222573. The reversal of 13634222554 is 45522243631.

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., 13625192529 + 9030025 = 116727^2 + 3005^2 .

It is not an unprimeable number, because it can be changed into a prime (13634222551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408555637 + ... + 3408555640.

Almost surely, 2^13634222554 is an apocalyptic number.

13634222554 is a deficient number, since it is larger than the sum of its proper divisors (6817111280).

13634222554 is an equidigital number, since it uses as much as digits as its factorization.

13634222554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6817111279.

The product of its digits is 172800, while the sum is 37.

The spelling of 13634222554 in words is "thirteen billion, six hundred thirty-four million, two hundred twenty-two thousand, five hundred fifty-four".