27798442712 has 16 divisors (see below), whose sum is σ = 54388257840. Its totient is φ = 13294907296.

The previous prime is 27798442709. The next prime is 27798442741. The reversal of 27798442712 is 21724489772.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75539063 + ... + 75539430.

It is an arithmetic number, because the mean of its divisors is an integer number (3399266115).

Almost surely, 2^27798442712 is an apocalyptic number.

It is an amenable number.

27798442712 is a deficient number, since it is larger than the sum of its proper divisors (26589815128).

27798442712 is a wasteful number, since it uses less digits than its factorization.

27798442712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151078522 (or 151078518 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 53.

The spelling of 27798442712 in words is "twenty-seven billion, seven hundred ninety-eight million, four hundred forty-two thousand, seven hundred twelve".