6540380000868 has 96 divisors (see below), whose sum is σ = 18031630704640. Its totient is φ = 1805587096320.

The previous prime is 6540380000827. The next prime is 6540380000873. The reversal of 6540380000868 is 8680000830456.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278713 + ... + 3627456.

Almost surely, 2^{6540380000868} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6540380000868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9015815352320).

6540380000868 is an abundant number, since it is smaller than the sum of its proper divisors (11491250703772).

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

6540380000868 is a wasteful number, since it uses less digits than its factorization.

6540380000868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3906857 (or 3906855 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 48.

The spelling of 6540380000868 in words is "six trillion, five hundred forty billion, three hundred eighty million, eight hundred sixty-eight", and thus it is an aban number.