83481327973 has 4 divisors (see below), whose sum is σ = 83534604160. Its totient is φ = 83428051788.

The previous prime is 83481327971. The next prime is 83481327977. The reversal of 83481327973 is 37972318438.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 83481327973 - 2¹ = 83481327971 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 (83481327971) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26635743 + ... + 26638876.

It is an arithmetic number, because the mean of its divisors is an integer number (20883651040).

Almost surely, 2^83481327973 is an apocalyptic number.

It is an amenable number.

83481327973 is a deficient number, since it is larger than the sum of its proper divisors (53276187).

83481327973 is a wasteful number, since it uses less digits than its factorization.

83481327973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53276186.

The product of its digits is 6096384, while the sum is 55.

The spelling of 83481327973 in words is "eighty-three billion, four hundred eighty-one million, three hundred twenty-seven thousand, nine hundred seventy-three".