6454187927440 has 160 divisors (see below), whose sum is σ = 16584767078400. Its totient is φ = 2316236981760.

The previous prime is 6454187927413. The next prime is 6454187927459. The reversal of 6454187927440 is 447297814546.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 165646681 + ... + 165685639.

It is an arithmetic number, because the mean of its divisors is an integer number (103654794240).

Almost surely, 2^{6454187927440} 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 6454187927440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8292383539200).

6454187927440 is an abundant number, since it is smaller than the sum of its proper divisors (10130579150960).

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

6454187927440 is a wasteful number, since it uses less digits than its factorization.

6454187927440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41445 (or 41439 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 61.

The spelling of 6454187927440 in words is "six trillion, four hundred fifty-four billion, one hundred eighty-seven million, nine hundred twenty-seven thousand, four hundred forty".