27860406040 has 96 divisors (see below), whose sum is σ = 66267208080. Its totient is φ = 10540341504.

The previous prime is 27860406011. The next prime is 27860406047. The reversal of 27860406040 is 4060406872.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27860406047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11940714 + ... + 11943046.

Almost surely, 2^27860406040 is an apocalyptic number.

27860406040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 27860406040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33133604040).

27860406040 is an abundant number, since it is smaller than the sum of its proper divisors (38406802040).

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

27860406040 is a wasteful number, since it uses less digits than its factorization.

27860406040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3209 (or 3186 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 27860406040 in words is "twenty-seven billion, eight hundred sixty million, four hundred six thousand, forty".