73387305421 has 8 divisors (see below), whose sum is σ = 77641930080. Its totient is φ = 69171894288.

The previous prime is 73387305401. The next prime is 73387305443. The reversal of 73387305421 is 12450378337.

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 73387305421 - 2¹⁷ = 73387174349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73387305401) 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, 9799531 + ... + 9807016.

It is an arithmetic number, because the mean of its divisors is an integer number (9705241260).

Almost surely, 2^73387305421 is an apocalyptic number.

It is an amenable number.

73387305421 is a deficient number, since it is larger than the sum of its proper divisors (4254624659).

73387305421 is a wasteful number, since it uses less digits than its factorization.

73387305421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19606763.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 73387305421 in words is "seventy-three billion, three hundred eighty-seven million, three hundred five thousand, four hundred twenty-one".