457243423991256 has 128 divisors (see below), whose sum is σ = 1313741371507200. Its totient is φ = 129907856332800.

The previous prime is 457243423991227. The next prime is 457243423991273. The reversal of 457243423991256 is 652199324342754.

It is a happy number.

It is a congruent number.

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, 1346243856 + ... + 1346583456.

It is an arithmetic number, because the mean of its divisors is an integer number (10263604464900).

Almost surely, 2^{457243423991256} 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 457243423991256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (656870685753600).

457243423991256 is an abundant number, since it is smaller than the sum of its proper divisors (856497947515944).

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

457243423991256 is a wasteful number, since it uses less digits than its factorization.

457243423991256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384569 (or 384565 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 66.

The spelling of 457243423991256 in words is "four hundred fifty-seven trillion, two hundred forty-three billion, four hundred twenty-three million, nine hundred ninety-one thousand, two hundred fifty-six".