6999475536 has 30 divisors (see below), whose sum is σ = 19588810410. Its totient is φ = 2333158464.

The previous prime is 6999475499. The next prime is 6999475627. The reversal of 6999475536 is 6355749996.

6999475536 is a `hidden beast` number, since 6 + 9 + 9 + 94 + 7 + 5 + 536 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6995649600 + 3825936 = 83640^2 + 1956^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24303591 + ... + 24303878.

It is an arithmetic number, because the mean of its divisors is an integer number (652960347).

Almost surely, 2^6999475536 is an apocalyptic number.

It is an amenable number.

6999475536 is an abundant number, since it is smaller than the sum of its proper divisors (12589334874).

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

6999475536 is a wasteful number, since it uses less digits than its factorization.

6999475536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48607483 (or 48607474 counting only the distinct ones).

The product of its digits is 55112400, while the sum is 63.

The square root of 6999475536 is about 83662.8683228109. The cubic root of 6999475536 is about 1912.8834071249.

It can be divided in two parts, 69994 and 75536, that added together give a triangular number (145530 = T₅₃₉).

The spelling of 6999475536 in words is "six billion, nine hundred ninety-nine million, four hundred seventy-five thousand, five hundred thirty-six".