27777623348 has 24 divisors (see below), whose sum is σ = 51476918472. Its totient is φ = 13070142464.

The previous prime is 27777623339. The next prime is 27777623351. The reversal of 27777623348 is 84332677772.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4636520464 + 23141102884 = 68092^2 + 152122^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27777623293 and 27777623302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624290 + ... + 667302.

It is an arithmetic number, because the mean of its divisors is an integer number (2144871603).

Almost surely, 2^27777623348 is an apocalyptic number.

It is an amenable number.

27777623348 is a deficient number, since it is larger than the sum of its proper divisors (23699295124).

27777623348 is a wasteful number, since it uses less digits than its factorization.

27777623348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52531 (or 52529 counting only the distinct ones).

The product of its digits is 16595712, while the sum is 56.

The spelling of 27777623348 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred twenty-three thousand, three hundred forty-eight".