27765040378 has 8 divisors (see below), whose sum is σ = 41667019380. Its totient is φ = 13876033920.

The previous prime is 27765040361. The next prime is 27765040393. The reversal of 27765040378 is 87304056772.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 27515179129 + 249861249 = 165877^2 + 15807^2 .

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

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, 3237783 + ... + 3246346.

Almost surely, 2^27765040378 is an apocalyptic number.

27765040378 is a deficient number, since it is larger than the sum of its proper divisors (13901979002).

27765040378 is a wasteful number, since it uses less digits than its factorization.

27765040378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6486272.

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 27765040378 in words is "twenty-seven billion, seven hundred sixty-five million, forty thousand, three hundred seventy-eight".