27777564294348 has 48 divisors (see below), whose sum is σ = 72987383024640. Its totient is φ = 8145913281600.

The previous prime is 27777564294341. The next prime is 27777564294349. The reversal of 27777564294348 is 84349246577772.

It is a self number, because there is not a number n which added to its sum of digits gives 27777564294348.

It is not an unprimeable number, because it can be changed into a prime (27777564294341) 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, 3394126443 + ... + 3394134626.

It is an arithmetic number, because the mean of its divisors is an integer number (1520570479680).

Almost surely, 2^{27777564294348} is an apocalyptic number.

It is an amenable number.

27777564294348 is an abundant number, since it is smaller than the sum of its proper divisors (45209818730292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27777564294348 is a wasteful number, since it uses less digits than its factorization.

27777564294348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6788261118 (or 6788261116 counting only the distinct ones).

The product of its digits is 3982970880, while the sum is 75.

The spelling of 27777564294348 in words is "twenty-seven trillion, seven hundred seventy-seven billion, five hundred sixty-four million, two hundred ninety-four thousand, three hundred forty-eight".