64326243442 has 4 divisors (see below), whose sum is σ = 96489365166. Its totient is φ = 32163121720.

The previous prime is 64326243433. The next prime is 64326243473. The reversal of 64326243442 is 24434262346.

64326243442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 50782171801 + 13544071641 = 225349^2 + 116379^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64326243395 and 64326243404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16081560859 + ... + 16081560862.

Almost surely, 2^64326243442 is an apocalyptic number.

64326243442 is a deficient number, since it is larger than the sum of its proper divisors (32163121724).

64326243442 is a wasteful number, since it uses less digits than its factorization.

64326243442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32163121723.

The product of its digits is 663552, while the sum is 40.

The spelling of 64326243442 in words is "sixty-four billion, three hundred twenty-six million, two hundred forty-three thousand, four hundred forty-two".