27800546425 has 12 divisors (see below), whose sum is σ = 34647671916. Its totient is φ = 22127537600.

The previous prime is 27800546363. The next prime is 27800546441. The reversal of 27800546425 is 52464500872.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 423865744 + 27376680681 = 20588^2 + 165459^2 .

It is not a de Polignac number, because 27800546425 - 2¹¹ = 27800544377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2817466 + ... + 2827315.

It is an arithmetic number, because the mean of its divisors is an integer number (2887305993).

Almost surely, 2^27800546425 is an apocalyptic number.

27800546425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27800546425 is a deficient number, since it is larger than the sum of its proper divisors (6847125491).

27800546425 is a wasteful number, since it uses less digits than its factorization.

27800546425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644988 (or 5644983 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 43.

The spelling of 27800546425 in words is "twenty-seven billion, eight hundred million, five hundred forty-six thousand, four hundred twenty-five".