73084888109 has 4 divisors (see below), whose sum is σ = 74463848316. Its totient is φ = 71705927904.

The previous prime is 73084888087. The next prime is 73084888111. The reversal of 73084888109 is 90188848037.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90188848037 = 59 ⋅1528624543.

It can be written as a sum of positive squares in 2 ways, for example, as 65611285609 + 7473602500 = 256147^2 + 86450^2 .

It is a cyclic number.

It is not a de Polignac number, because 73084888109 - 2²⁰ = 73083839533 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 (73084888199) 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, 689480024 + ... + 689480129.

It is an arithmetic number, because the mean of its divisors is an integer number (18615962079).

Almost surely, 2^73084888109 is an apocalyptic number.

It is an amenable number.

73084888109 is a deficient number, since it is larger than the sum of its proper divisors (1378960207).

73084888109 is a wasteful number, since it uses less digits than its factorization.

73084888109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378960206.

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 73084888109 in words is "seventy-three billion, eighty-four million, eight hundred eighty-eight thousand, one hundred nine".