27705171000 has 128 divisors (see below), whose sum is σ = 93089505600. Its totient is φ = 6819724800.

The previous prime is 27705170953. The next prime is 27705171001. The reversal of 27705171000 is 17150772.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27705171001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 316195 + ... + 394194.

Almost surely, 2^27705171000 is an apocalyptic number.

27705171000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27705171000 is an abundant number, since it is smaller than the sum of its proper divisors (65384334600).

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

27705171000 is a wasteful number, since it uses less digits than its factorization.

27705171000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710426 (or 710412 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 30.

The spelling of 27705171000 in words is "twenty-seven billion, seven hundred five million, one hundred seventy-one thousand".