27880456767 has 8 divisors (see below), whose sum is σ = 37322046720. Its totient is φ = 18512919000.

The previous prime is 27880456753. The next prime is 27880456771. The reversal of 27880456767 is 76765408872.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27880456767 - 2³⁰ = 26806714943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27880456767.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27880456787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18512167 + ... + 18513672.

It is an arithmetic number, because the mean of its divisors is an integer number (4665255840).

Almost surely, 2^27880456767 is an apocalyptic number.

27880456767 is a deficient number, since it is larger than the sum of its proper divisors (9441589953).

27880456767 is a wasteful number, since it uses less digits than its factorization.

27880456767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37026093.

The product of its (nonzero) digits is 31610880, while the sum is 60.

The spelling of 27880456767 in words is "twenty-seven billion, eight hundred eighty million, four hundred fifty-six thousand, seven hundred sixty-seven".