73993704445821 has 8 divisors (see below), whose sum is σ = 98658312803424. Its totient is φ = 49329116192720.

The previous prime is 73993704445811. The next prime is 73993704445861. The reversal of 73993704445821 is 12854440739937.

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

It is a cyclic number.

It is not a de Polignac number, because 73993704445821 - 2⁵ = 73993704445789 is a prime.

It is a super-3 number, since 3×73993704445821³ (a number of 43 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73993704445811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9860206 + ... + 15659216.

It is an arithmetic number, because the mean of its divisors is an integer number (12332289100428).

Almost surely, 2^{73993704445821} is an apocalyptic number.

It is an amenable number.

73993704445821 is a deficient number, since it is larger than the sum of its proper divisors (24664608357603).

73993704445821 is a wasteful number, since it uses less digits than its factorization.

73993704445821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10052251.

The product of its (nonzero) digits is 182891520, while the sum is 66.

The spelling of 73993704445821 in words is "seventy-three trillion, nine hundred ninety-three billion, seven hundred four million, four hundred forty-five thousand, eight hundred twenty-one".