27145727425 has 24 divisors (see below), whose sum is σ = 34792505280. Its totient is φ = 20998459200.

The previous prime is 27145727369. The next prime is 27145727471. The reversal of 27145727425 is 52472754172.

It is not a de Polignac number, because 27145727425 - 2¹⁵ = 27145694657 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60877 + ... + 240826.

It is an arithmetic number, because the mean of its divisors is an integer number (1449687720).

Almost surely, 2^27145727425 is an apocalyptic number.

27145727425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27145727425 is a deficient number, since it is larger than the sum of its proper divisors (7646777855).

27145727425 is a wasteful number, since it uses less digits than its factorization.

27145727425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301833 (or 301828 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 46.

The spelling of 27145727425 in words is "twenty-seven billion, one hundred forty-five million, seven hundred twenty-seven thousand, four hundred twenty-five".