6457021243068 has 96 divisors (see below), whose sum is σ = 17421263371008. Its totient is φ = 1839629440000.

The previous prime is 6457021243067. The next prime is 6457021243073. The reversal of 6457021243068 is 8603421207546.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6457021243067) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 605818 + ... + 3644318.

It is an arithmetic number, because the mean of its divisors is an integer number (181471493448).

Almost surely, 2^{6457021243068} is an apocalyptic number.

6457021243068 is a gapful number since it is divisible by the number (68) 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 6457021243068, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8710631685504).

6457021243068 is an abundant number, since it is smaller than the sum of its proper divisors (10964242127940).

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

6457021243068 is a wasteful number, since it uses less digits than its factorization.

6457021243068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3039483 (or 3039481 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 6457021243068 in words is "six trillion, four hundred fifty-seven billion, twenty-one million, two hundred forty-three thousand, sixty-eight".