73531222092 has 108 divisors (see below), whose sum is σ = 193340816760. Its totient is φ = 24167545344.

The previous prime is 73531222087. The next prime is 73531222129. The reversal of 73531222092 is 29022213537.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

73531222092 is a `hidden beast` number, since 7 + 35 + 312 + 220 + 92 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 273350134 + ... + 273350402.

Almost surely, 2^73531222092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73531222092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96670408380).

73531222092 is an abundant number, since it is smaller than the sum of its proper divisors (119809594668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73531222092 is an equidigital number, since it uses as much as digits as its factorization.

73531222092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 73531222092 in words is "seventy-three billion, five hundred thirty-one million, two hundred twenty-two thousand, ninety-two".