80730000073 has 4 divisors (see below), whose sum is σ = 81181005840. Its totient is φ = 80278994308.

The previous prime is 80730000037. The next prime is 80730000079. The reversal of 80730000073 is 37000003708.

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 80730000073 - 2¹⁷ = 80729869001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80729999996 and 80730000050.

It is not an unprimeable number, because it can be changed into a prime (80730000079) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 225502615 + ... + 225502972.

It is an arithmetic number, because the mean of its divisors is an integer number (20295251460).

Almost surely, 2^80730000073 is an apocalyptic number.

It is an amenable number.

80730000073 is a deficient number, since it is larger than the sum of its proper divisors (451005767).

80730000073 is a wasteful number, since it uses less digits than its factorization.

80730000073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451005766.

The product of its (nonzero) digits is 3528, while the sum is 28.

The spelling of 80730000073 in words is "eighty billion, seven hundred thirty million, seventy-three", and thus it is an aban number.