27777674020 has 24 divisors (see below), whose sum is σ = 58704670584. Its totient is φ = 11040297216.

The previous prime is 27777673999. The next prime is 27777674047. The reversal of 27777674020 is 2047677772.

It can be written as a sum of positive squares in 4 ways, for example, as 187799616 + 27589874404 = 13704^2 + 166102^2 .

It is a super-2 number, since 2×27777674020² (a number of 22 digits) contains 22 as substring.

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, 4420057 + ... + 4426336.

It is an arithmetic number, because the mean of its divisors is an integer number (2446027941).

Almost surely, 2^27777674020 is an apocalyptic number.

27777674020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27777674020 is an abundant number, since it is smaller than the sum of its proper divisors (30926996564).

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

27777674020 is a wasteful number, since it uses less digits than its factorization.

27777674020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8846559 (or 8846557 counting only the distinct ones).

The product of its (nonzero) digits is 1613472, while the sum is 49.

The spelling of 27777674020 in words is "twenty-seven billion, seven hundred seventy-seven million, six hundred seventy-four thousand, twenty".