64434355343446 has 32 divisors (see below), whose sum is σ = 105720341148576. Its totient is φ = 29209989696000.

The previous prime is 64434355343429. The next prime is 64434355343453.

64434355343446 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×64434355343446² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18400126 + ... + 21620206.

It is an arithmetic number, because the mean of its divisors is an integer number (3303760660893).

Almost surely, 2^{64434355343446} is an apocalyptic number.

64434355343446 is a deficient number, since it is larger than the sum of its proper divisors (41285985805130).

64434355343446 is a wasteful number, since it uses less digits than its factorization.

64434355343446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3222528.

The product of its digits is 298598400, while the sum is 58.

The spelling of 64434355343446 in words is "sixty-four trillion, four hundred thirty-four billion, three hundred fifty-five million, three hundred forty-three thousand, four hundred forty-six".