27968271802 has 4 divisors (see below), whose sum is σ = 41952407706. Its totient is φ = 13984135900.

The previous prime is 27968271763. The next prime is 27968271817. The reversal of 27968271802 is 20817286972.

It is a happy number.

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., 26114883201 + 1853388601 = 161601^2 + 43051^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 27968271802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6992067949 + ... + 6992067952.

Almost surely, 2^27968271802 is an apocalyptic number.

27968271802 is a deficient number, since it is larger than the sum of its proper divisors (13984135904).

27968271802 is a wasteful number, since it uses less digits than its factorization.

27968271802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13984135903.

The product of its (nonzero) digits is 1354752, while the sum is 52.

The spelling of 27968271802 in words is "twenty-seven billion, nine hundred sixty-eight million, two hundred seventy-one thousand, eight hundred two".