27799020278 has 4 divisors (see below), whose sum is σ = 41698530420. Its totient is φ = 13899510138.

The previous prime is 27799020269. The next prime is 27799020283. The reversal of 27799020278 is 87202099772.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6949755068 + ... + 6949755071.

It is an arithmetic number, because the mean of its divisors is an integer number (10424632605).

Almost surely, 2^27799020278 is an apocalyptic number.

27799020278 is a deficient number, since it is larger than the sum of its proper divisors (13899510142).

27799020278 is a wasteful number, since it uses less digits than its factorization.

27799020278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13899510141.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 27799020278 in words is "twenty-seven billion, seven hundred ninety-nine million, twenty thousand, two hundred seventy-eight".