80173139093 has 4 divisors (see below), whose sum is σ = 80174692428. Its totient is φ = 80171585760.

The previous prime is 80173139077. The next prime is 80173139117. The reversal of 80173139093 is 39093137108.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 43256512324 + 36916626769 = 207982^2 + 192137^2 .

It is a cyclic number.

It is not a de Polignac number, because 80173139093 - 2⁴ = 80173139077 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 (80173139003) 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, 696488 + ... + 803393.

It is an arithmetic number, because the mean of its divisors is an integer number (20043673107).

Almost surely, 2^80173139093 is an apocalyptic number.

It is an amenable number.

80173139093 is a deficient number, since it is larger than the sum of its proper divisors (1553335).

80173139093 is a wasteful number, since it uses less digits than its factorization.

80173139093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1553334.

The product of its (nonzero) digits is 122472, while the sum is 44.

The spelling of 80173139093 in words is "eighty billion, one hundred seventy-three million, one hundred thirty-nine thousand, ninety-three".