73433143664 has 20 divisors (see below), whose sum is σ = 145303881504. Its totient is φ = 35935367808.

The previous prime is 73433143649. The next prime is 73433143691. The reversal of 73433143664 is 46634133437.

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, 48824477 + ... + 48825980.

Almost surely, 2^73433143664 is an apocalyptic number.

It is an amenable number.

73433143664 is a deficient number, since it is larger than the sum of its proper divisors (71870737840).

73433143664 is a wasteful number, since it uses less digits than its factorization.

73433143664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97650512 (or 97650506 counting only the distinct ones).

The product of its digits is 1306368, while the sum is 44.

The spelling of 73433143664 in words is "seventy-three billion, four hundred thirty-three million, one hundred forty-three thousand, six hundred sixty-four".