27351797698 has 4 divisors (see below), whose sum is σ = 41027696550. Its totient is φ = 13675898848.

The previous prime is 27351797689. The next prime is 27351797713. The reversal of 27351797698 is 89679715372.

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., 25559376129 + 1792421569 = 159873^2 + 42337^2 .

It is an unprimeable number.

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, 6837949423 + ... + 6837949426.

Almost surely, 2^27351797698 is an apocalyptic number.

27351797698 is a deficient number, since it is larger than the sum of its proper divisors (13675898852).

27351797698 is a wasteful number, since it uses less digits than its factorization.

27351797698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13675898851.

The product of its digits is 40007520, while the sum is 64.

The spelling of 27351797698 in words is "twenty-seven billion, three hundred fifty-one million, seven hundred ninety-seven thousand, six hundred ninety-eight".