511134805808 has 40 divisors (see below), whose sum is σ = 1081614053520. Its totient is φ = 232062832640.

The previous prime is 511134805801. The next prime is 511134805823. The reversal of 511134805808 is 808508431115.

It is a super-2 number, since 2×511134805808² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (511134805801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1543553 + ... + 1845216.

It is an arithmetic number, because the mean of its divisors is an integer number (27040351338).

Almost surely, 2^511134805808 is an apocalyptic number.

It is an amenable number.

511134805808 is an abundant number, since it is smaller than the sum of its proper divisors (570479247712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

511134805808 is a wasteful number, since it uses less digits than its factorization.

511134805808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389645 (or 3389639 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 44.

The spelling of 511134805808 in words is "five hundred eleven billion, one hundred thirty-four million, eight hundred five thousand, eight hundred eight".