42256256641464 has 32 divisors (see below), whose sum is σ = 105649547368320. Its totient is φ = 14084231445216.

The previous prime is 42256256641441. The next prime is 42256256641499. The reversal of 42256256641464 is 46414665265224.

42256256641464 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 73924062 + ... + 74493485.

It is an arithmetic number, because the mean of its divisors is an integer number (3301548355260).

Almost surely, 2^{42256256641464} is an apocalyptic number.

It is an amenable number.

42256256641464 is an abundant number, since it is smaller than the sum of its proper divisors (63393290726856).

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

42256256641464 is a wasteful number, since it uses less digits than its factorization.

42256256641464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148429419 (or 148429415 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 57.

The spelling of 42256256641464 in words is "forty-two trillion, two hundred fifty-six billion, two hundred fifty-six million, six hundred forty-one thousand, four hundred sixty-four".