801311073505 has 16 divisors (see below), whose sum is σ = 973088146944. Its totient is φ = 633398356800.

The previous prime is 801311073491. The next prime is 801311073529. The reversal of 801311073505 is 505370113108.

801311073505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 801311073505 - 2¹⁵ = 801311040737 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1383177 + ... + 1875046.

It is an arithmetic number, because the mean of its divisors is an integer number (60818009184).

Almost surely, 2^801311073505 is an apocalyptic number.

It is an amenable number.

801311073505 is a deficient number, since it is larger than the sum of its proper divisors (171777073439).

801311073505 is a wasteful number, since it uses less digits than its factorization.

801311073505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258816.

The product of its (nonzero) digits is 12600, while the sum is 34.

The spelling of 801311073505 in words is "eight hundred one billion, three hundred eleven million, seventy-three thousand, five hundred five".