6534173861880 has 256 divisors, whose sum is σ = 22487285145600. Its totient is φ = 1487908846080.

The previous prime is 6534173861863. The next prime is 6534173861881. The reversal of 6534173861880 is 881683714356.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6534173861881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 254800339 + ... + 254825981.

It is an arithmetic number, because the mean of its divisors is an integer number (87840957600).

Almost surely, 2^{6534173861880} is an apocalyptic number.

6534173861880 is a gapful number since it is divisible by the number (60) 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 6534173861880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11243642572800).

6534173861880 is an abundant number, since it is smaller than the sum of its proper divisors (15953111283720).

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

6534173861880 is a wasteful number, since it uses less digits than its factorization.

6534173861880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26794 (or 26790 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 60.

The spelling of 6534173861880 in words is "six trillion, five hundred thirty-four billion, one hundred seventy-three million, eight hundred sixty-one thousand, eight hundred eighty".