27865701025 has 12 divisors (see below), whose sum is σ = 34817240304. Its totient is φ = 22122386000.

The previous prime is 27865701013. The next prime is 27865701041. The reversal of 27865701025 is 52010756872.

It is not a de Polignac number, because 27865701025 - 2²⁵ = 27832146593 is a prime.

It is a super-2 number, since 2×27865701025² (a number of 22 digits) contains 22 as substring.

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, 4251031 + ... + 4257580.

It is an arithmetic number, because the mean of its divisors is an integer number (2901436692).

Almost surely, 2^27865701025 is an apocalyptic number.

27865701025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27865701025 is a deficient number, since it is larger than the sum of its proper divisors (6951539279).

27865701025 is a wasteful number, since it uses less digits than its factorization.

27865701025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8508752 (or 8508747 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The spelling of 27865701025 in words is "twenty-seven billion, eight hundred sixty-five million, seven hundred one thousand, twenty-five".