64304136582 has 48 divisors (see below), whose sum is σ = 149642816832. Its totient is φ = 18368033040.

The previous prime is 64304136581. The next prime is 64304136601. The reversal of 64304136582 is 28563140346.

64304136582 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64304136581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1257657 + ... + 1307787.

It is an arithmetic number, because the mean of its divisors is an integer number (3117558684).

Almost surely, 2^64304136582 is an apocalyptic number.

64304136582 is an abundant number, since it is smaller than the sum of its proper divisors (85338680250).

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

64304136582 is a wasteful number, since it uses less digits than its factorization.

64304136582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54513 (or 54506 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 64304136582 in words is "sixty-four billion, three hundred four million, one hundred thirty-six thousand, five hundred eighty-two".