73021768432 has 10 divisors (see below), whose sum is σ = 141479676368. Its totient is φ = 36510884208.

The previous prime is 73021768273. The next prime is 73021768453. The reversal of 73021768432 is 23486712037.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2281930248 + ... + 2281930279.

Almost surely, 2^73021768432 is an apocalyptic number.

It is an amenable number.

73021768432 is a deficient number, since it is larger than the sum of its proper divisors (68457907936).

73021768432 is a wasteful number, since it uses less digits than its factorization.

73021768432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4563860535 (or 4563860529 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The spelling of 73021768432 in words is "seventy-three billion, twenty-one million, seven hundred sixty-eight thousand, four hundred thirty-two".