801500072873 has 2 divisors, whose sum is σ = 801500072874. Its totient is φ = 801500072872.

The previous prime is 801500072839. The next prime is 801500072903. The reversal of 801500072873 is 378270005108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795526637929 + 5973434944 = 891923^2 + 77288^2 .

It is a cyclic number.

It is not a de Polignac number, because 801500072873 - 2⁶ = 801500072809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 801500072873.

It is not a weakly prime, because it can be changed into another prime (801500072803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400750036436 + 400750036437.

It is an arithmetic number, because the mean of its divisors is an integer number (400750036437).

Almost surely, 2^801500072873 is an apocalyptic number.

It is an amenable number.

801500072873 is a deficient number, since it is larger than the sum of its proper divisors (1).

801500072873 is an equidigital number, since it uses as much as digits as its factorization.

801500072873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 41.

The spelling of 801500072873 in words is "eight hundred one billion, five hundred million, seventy-two thousand, eight hundred seventy-three".