801287939873 has 16 divisors (see below), whose sum is σ = 845573826240. Its totient is φ = 757215288000.

The previous prime is 801287939869. The next prime is 801287939899. The reversal of 801287939873 is 378939782108.

801287939873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 801287939873 - 2² = 801287939869 is a prime.

It is a super-2 number, since 2×801287939873² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (801287935873) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15329843 + ... + 15382023.

It is an arithmetic number, because the mean of its divisors is an integer number (52848364140).

Almost surely, 2^801287939873 is an apocalyptic number.

It is an amenable number.

801287939873 is a deficient number, since it is larger than the sum of its proper divisors (44285886367).

801287939873 is a wasteful number, since it uses less digits than its factorization.

801287939873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54208.

The product of its (nonzero) digits is 36578304, while the sum is 65.

The spelling of 801287939873 in words is "eight hundred one billion, two hundred eighty-seven million, nine hundred thirty-nine thousand, eight hundred seventy-three".