6990204883831 has 4 divisors (see below), whose sum is σ = 7527912951832. Its totient is φ = 6452496815832.

The previous prime is 6990204883829. The next prime is 6990204883853. The reversal of 6990204883831 is 1383884020996.

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 6990204883831 - 2¹ = 6990204883829 is a prime.

It is a super-2 number, since 2×6990204883831² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6990204883831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990204886831) 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, 268854033981 + ... + 268854034006.

It is an arithmetic number, because the mean of its divisors is an integer number (1881978237958).

Almost surely, 2^{6990204883831} is an apocalyptic number.

6990204883831 is a deficient number, since it is larger than the sum of its proper divisors (537708068001).

6990204883831 is a wasteful number, since it uses less digits than its factorization.

6990204883831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537708068000.

The product of its (nonzero) digits is 17915904, while the sum is 61.

The spelling of 6990204883831 in words is "six trillion, nine hundred ninety billion, two hundred four million, eight hundred eighty-three thousand, eight hundred thirty-one".