27812717140 has 48 divisors (see below), whose sum is σ = 63510265728. Its totient is φ = 10169599104.

The previous prime is 27812717129. The next prime is 27812717147. The reversal of 27812717140 is 4171721872.

It is a junction number, because it is equal to n+sod(n) for n = 27812717093 and 27812717102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27812717147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 492502 + ... + 546061.

It is an arithmetic number, because the mean of its divisors is an integer number (1323130536).

Almost surely, 2^27812717140 is an apocalyptic number.

27812717140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27812717140 is an abundant number, since it is smaller than the sum of its proper divisors (35697548588).

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

27812717140 is a wasteful number, since it uses less digits than its factorization.

27812717140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038688 (or 1038686 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 40.

The spelling of 27812717140 in words is "twenty-seven billion, eight hundred twelve million, seven hundred seventeen thousand, one hundred forty".