64443535348 has 12 divisors (see below), whose sum is σ = 112778531712. Its totient is φ = 32221097720.

The previous prime is 64443535319. The next prime is 64443535369. The reversal of 64443535348 is 84353534446.

It is a super-2 number, since 2×64443535348² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94461 + ... + 371227.

It is an arithmetic number, because the mean of its divisors is an integer number (9398210976).

Almost surely, 2^64443535348 is an apocalyptic number.

It is an amenable number.

64443535348 is a deficient number, since it is larger than the sum of its proper divisors (48334996364).

64443535348 is a wasteful number, since it uses less digits than its factorization.

64443535348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334982 (or 334980 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 49.

The spelling of 64443535348 in words is "sixty-four billion, four hundred forty-three million, five hundred thirty-five thousand, three hundred forty-eight".