808987691234 has 32 divisors (see below), whose sum is σ = 1245414272256. Its totient is φ = 393907288320.

The previous prime is 808987691219. The next prime is 808987691299. The reversal of 808987691234 is 432196789808.

It is a happy number.

808987691234 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×808987691234² (a number of 25 digits) contains 22 as substring.

It is a Curzon 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, 52602554 + ... + 52617930.

It is an arithmetic number, because the mean of its divisors is an integer number (38919196008).

Almost surely, 2^808987691234 is an apocalyptic number.

808987691234 is a deficient number, since it is larger than the sum of its proper divisors (436426581022).

808987691234 is a wasteful number, since it uses less digits than its factorization.

808987691234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17210.

The product of its (nonzero) digits is 41803776, while the sum is 65.

The spelling of 808987691234 in words is "eight hundred eight billion, nine hundred eighty-seven million, six hundred ninety-one thousand, two hundred thirty-four".