27802836878025 has 96 divisors (see below), whose sum is σ = 53102582467200. Its totient is φ = 12685635993600.

The previous prime is 27802836877969. The next prime is 27802836878027. The reversal of 27802836878025 is 52087863820872.

It is not a de Polignac number, because 27802836878025 - 2¹¹ = 27802836875977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27802836878027) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 116695221 + ... + 116933229.

It is an arithmetic number, because the mean of its divisors is an integer number (553151900700).

Almost surely, 2^{27802836878025} is an apocalyptic number.

27802836878025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27802836878025 is a deficient number, since it is larger than the sum of its proper divisors (25299745589175).

27802836878025 is a wasteful number, since it uses less digits than its factorization.

27802836878025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246379 (or 246374 counting only the distinct ones).

The product of its (nonzero) digits is 144506880, while the sum is 66.

The spelling of 27802836878025 in words is "twenty-seven trillion, eight hundred two billion, eight hundred thirty-six million, eight hundred seventy-eight thousand, twenty-five".