64381675582 has 32 divisors (see below), whose sum is σ = 113374422720. Its totient is φ = 26840989440.

The previous prime is 64381675571. The next prime is 64381675583. The reversal of 64381675582 is 28557618346.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64381675583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3503394 + ... + 3521722.

It is an arithmetic number, because the mean of its divisors is an integer number (3542950710).

Almost surely, 2^64381675582 is an apocalyptic number.

64381675582 is a deficient number, since it is larger than the sum of its proper divisors (48992747138).

64381675582 is a wasteful number, since it uses less digits than its factorization.

64381675582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25156.

The product of its digits is 9676800, while the sum is 55.

The spelling of 64381675582 in words is "sixty-four billion, three hundred eighty-one million, six hundred seventy-five thousand, five hundred eighty-two".