64445733342 has 24 divisors (see below), whose sum is σ = 139723685400. Its totient is φ = 21467870640.

The previous prime is 64445733301. The next prime is 64445733367. The reversal of 64445733342 is 24333754446.

64445733342 is a `hidden beast` number, since 6 + 4 + 4 + 4 + 573 + 33 + 42 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1141717 + ... + 1196832.

It is an arithmetic number, because the mean of its divisors is an integer number (5821820225).

Almost surely, 2^64445733342 is an apocalyptic number.

64445733342 is an abundant number, since it is smaller than the sum of its proper divisors (75277952058).

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

64445733342 is a wasteful number, since it uses less digits than its factorization.

64445733342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2340088 (or 2340085 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 45.

The spelling of 64445733342 in words is "sixty-four billion, four hundred forty-five million, seven hundred thirty-three thousand, three hundred forty-two".