457281068544 has 160 divisors (see below), whose sum is σ = 1354067024640. Its totient is φ = 152372606976.

The previous prime is 457281068509. The next prime is 457281068581. The reversal of 457281068544 is 445860182754.

457281068544 is a `hidden beast` number, since 4 + 5 + 7 + 28 + 10 + 68 + 544 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63130587 + ... + 63137829.

It is an arithmetic number, because the mean of its divisors is an integer number (8462918904).

Almost surely, 2^457281068544 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 457281068544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (677033512320).

457281068544 is an abundant number, since it is smaller than the sum of its proper divisors (896785956096).

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

457281068544 is an equidigital number, since it uses as much as digits as its factorization.

457281068544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11837 (or 11815 counting only the distinct ones).

The product of its (nonzero) digits is 8601600, while the sum is 54.

The spelling of 457281068544 in words is "four hundred fifty-seven billion, two hundred eighty-one million, sixty-eight thousand, five hundred forty-four".