27765376279 has 16 divisors (see below), whose sum is σ = 29171197440. Its totient is φ = 26376724000.

The previous prime is 27765376277. The next prime is 27765376313. The reversal of 27765376279 is 97267356772.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27765376279 - 2¹ = 27765376277 is a prime.

It is a super-2 number, since 2×27765376279² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27765376277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2065809 + ... + 2079205.

It is an arithmetic number, because the mean of its divisors is an integer number (1823199840).

Almost surely, 2^27765376279 is an apocalyptic number.

27765376279 is a deficient number, since it is larger than the sum of its proper divisors (1405821161).

27765376279 is a wasteful number, since it uses less digits than its factorization.

27765376279 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14030.

The product of its digits is 46675440, while the sum is 61.

The spelling of 27765376279 in words is "twenty-seven billion, seven hundred sixty-five million, three hundred seventy-six thousand, two hundred seventy-nine".