808729707872 has 24 divisors (see below), whose sum is σ = 1592339502600. Its totient is φ = 404326024704.

The previous prime is 808729707871. The next prime is 808729707881. The reversal of 808729707872 is 278707927808.

It is a junction number, because it is equal to n+sod(n) for n = 808729707799 and 808729707808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808729707871) 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, 873497 + ... + 1542872.

It is an arithmetic number, because the mean of its divisors is an integer number (66347479275).

Almost surely, 2^808729707872 is an apocalyptic number.

It is an amenable number.

808729707872 is a deficient number, since it is larger than the sum of its proper divisors (783609794728).

808729707872 is a wasteful number, since it uses less digits than its factorization.

808729707872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426838 (or 2426830 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 65.

The spelling of 808729707872 in words is "eight hundred eight billion, seven hundred twenty-nine million, seven hundred seven thousand, eight hundred seventy-two".