64442377021322 has 8 divisors (see below), whose sum is σ = 97197618380772. Its totient is φ = 32043170894400.

The previous prime is 64442377021303. The next prime is 64442377021357. The reversal of 64442377021322 is 22312077324446.

It can be written as a sum of positive squares in 2 ways, for example, as 48060679321561 + 16381697699761 = 6932581^2 + 4047431^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×64442377021322³ (a number of 42 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89008807679 + ... + 89008808402.

Almost surely, 2^{64442377021322} is an apocalyptic number.

64442377021322 is a deficient number, since it is larger than the sum of its proper divisors (32755241359450).

64442377021322 is a wasteful number, since it uses less digits than its factorization.

64442377021322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178017616264.

The product of its (nonzero) digits is 2709504, while the sum is 47.

The spelling of 64442377021322 in words is "sixty-four trillion, four hundred forty-two billion, three hundred seventy-seven million, twenty-one thousand, three hundred twenty-two".