73543435421369 has 16 divisors (see below), whose sum is σ = 73845006528384. Its totient is φ = 73242302073600.

The previous prime is 73543435421363. The next prime is 73543435421377. The reversal of 73543435421369 is 96312453434537.

It is a cyclic number.

It is not a de Polignac number, because 73543435421369 - 2¹² = 73543435417273 is a prime.

It is a super-2 number, since 2×73543435421369² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73543435421363) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2933160017 + ... + 2933185089.

It is an arithmetic number, because the mean of its divisors is an integer number (4615312908024).

Almost surely, 2^{73543435421369} is an apocalyptic number.

It is an amenable number.

73543435421369 is a deficient number, since it is larger than the sum of its proper divisors (301571107015).

73543435421369 is a wasteful number, since it uses less digits than its factorization.

73543435421369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33328.

The product of its digits is 97977600, while the sum is 59.

The spelling of 73543435421369 in words is "seventy-three trillion, five hundred forty-three billion, four hundred thirty-five million, four hundred twenty-one thousand, three hundred sixty-nine".