840481477011 has 40 divisors (see below), whose sum is σ = 1450242574704. Its totient is φ = 479419015680.

The previous prime is 840481477007. The next prime is 840481477027. The reversal of 840481477011 is 110774184048.

It is not a de Polignac number, because 840481477011 - 2² = 840481477007 is a prime.

It is a super-2 number, since 2×840481477011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (840481477411) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 27729010 + ... + 27759303.

Almost surely, 2^840481477011 is an apocalyptic number.

840481477011 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

840481477011 is a deficient number, since it is larger than the sum of its proper divisors (609761097693).

840481477011 is a wasteful number, since it uses less digits than its factorization.

840481477011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55488353 (or 55488344 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 45.

The spelling of 840481477011 in words is "eight hundred forty billion, four hundred eighty-one million, four hundred seventy-seven thousand, eleven".