6900531663 has 16 divisors (see below), whose sum is σ = 9817633280. Its totient is φ = 4298526144.

The previous prime is 6900531661. The next prime is 6900531697. The reversal of 6900531663 is 3661350096.

It is not a de Polignac number, because 6900531663 - 2¹ = 6900531661 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 (6900531661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 825031 + ... + 833352.

It is an arithmetic number, because the mean of its divisors is an integer number (613602080).

Almost surely, 2^6900531663 is an apocalyptic number.

6900531663 is a deficient number, since it is larger than the sum of its proper divisors (2917101617).

6900531663 is a wasteful number, since it uses less digits than its factorization.

6900531663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658478.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 6900531663 is about 83069.4388027270. The cubic root of 6900531663 is about 1903.8271577346.

The spelling of 6900531663 in words is "six billion, nine hundred million, five hundred thirty-one thousand, six hundred sixty-three".