64464042445 has 8 divisors (see below), whose sum is σ = 84389292000. Its totient is φ = 46882939920.

The previous prime is 64464042427. The next prime is 64464042473. The reversal of 64464042445 is 54424046446.

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

It is not a de Polignac number, because 64464042445 - 2⁷ = 64464042317 is a prime.

It is a super-2 number, since 2×64464042445² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586036695 + ... + 586036804.

It is an arithmetic number, because the mean of its divisors is an integer number (10548661500).

Almost surely, 2^64464042445 is an apocalyptic number.

It is an amenable number.

64464042445 is a deficient number, since it is larger than the sum of its proper divisors (19925249555).

64464042445 is a wasteful number, since it uses less digits than its factorization.

64464042445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1172073515.

The product of its (nonzero) digits is 1474560, while the sum is 43.

The spelling of 64464042445 in words is "sixty-four billion, four hundred sixty-four million, forty-two thousand, four hundred forty-five".