27717245420 has 48 divisors (see below), whose sum is σ = 58676849280. Its totient is φ = 10997382144.

The previous prime is 27717245419. The next prime is 27717245431. The reversal of 27717245420 is 2454271772.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4405517 + ... + 4411803.

It is an arithmetic number, because the mean of its divisors is an integer number (1222434360).

Almost surely, 2^27717245420 is an apocalyptic number.

27717245420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27717245420 is an abundant number, since it is smaller than the sum of its proper divisors (30959603860).

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

27717245420 is a wasteful number, since it uses less digits than its factorization.

27717245420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8042 (or 8040 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 41.

The spelling of 27717245420 in words is "twenty-seven billion, seven hundred seventeen million, two hundred forty-five thousand, four hundred twenty".