28057227627400 has 48 divisors (see below), whose sum is σ = 65810337952500. Its totient is φ = 11123573422080.

The previous prime is 28057227627397. The next prime is 28057227627413. The reversal of 28057227627400 is 472672275082.

It can be written as a sum of positive squares in 6 ways, for example, as 10620807245764 + 17436420381636 = 3258958^2 + 4175694^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 620712525 + ... + 620757724.

Almost surely, 2^{28057227627400} is an apocalyptic number.

28057227627400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28057227627400 is an abundant number, since it is smaller than the sum of its proper divisors (37753110325100).

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

28057227627400 is a wasteful number, since it uses less digits than its factorization.

28057227627400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241470378 (or 1241470369 counting only the distinct ones).

The product of its (nonzero) digits is 5268480, while the sum is 52.

The spelling of 28057227627400 in words is "twenty-eight trillion, fifty-seven billion, two hundred twenty-seven million, six hundred twenty-seven thousand, four hundred".