808909135007 has 4 divisors (see below), whose sum is σ = 827720975400. Its totient is φ = 790097294616.

The previous prime is 808909135003. The next prime is 808909135051. The reversal of 808909135007 is 700531909808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 808909135007 - 2² = 808909135003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (808909135003) 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, 9405920132 + ... + 9405920217.

It is an arithmetic number, because the mean of its divisors is an integer number (206930243850).

Almost surely, 2^808909135007 is an apocalyptic number.

808909135007 is a deficient number, since it is larger than the sum of its proper divisors (18811840393).

808909135007 is a wasteful number, since it uses less digits than its factorization.

808909135007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18811840392.

The product of its (nonzero) digits is 544320, while the sum is 50.

The spelling of 808909135007 in words is "eight hundred eight billion, nine hundred nine million, one hundred thirty-five thousand, seven".