27765456772 has 6 divisors (see below), whose sum is σ = 48589549358. Its totient is φ = 13882728384.

The previous prime is 27765456769. The next prime is 27765456799.

27765456772 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in only one way, i.e., 21583723396 + 6181733376 = 146914^2 + 78624^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3470682093 + ... + 3470682100.

Almost surely, 2^27765456772 is an apocalyptic number.

It is an amenable number.

27765456772 is a deficient number, since it is larger than the sum of its proper divisors (20824092586).

27765456772 is a wasteful number, since it uses less digits than its factorization.

27765456772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6941364197 (or 6941364195 counting only the distinct ones).

The product of its digits is 34574400, while the sum is 58.

The spelling of 27765456772 in words is "twenty-seven billion, seven hundred sixty-five million, four hundred fifty-six thousand, seven hundred seventy-two".