6990379544 has 16 divisors (see below), whose sum is σ = 13123627800. Its totient is φ = 3490745472.

The previous prime is 6990379537. The next prime is 6990379577. The reversal of 6990379544 is 4459730996.

It is a self number, because there is not a number n which added to its sum of digits gives 6990379544.

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 3 ways as a sum of consecutive naturals, for example, 548849 + ... + 561440.

Almost surely, 2^6990379544 is an apocalyptic number.

It is an amenable number.

6990379544 is a deficient number, since it is larger than the sum of its proper divisors (6133248256).

6990379544 is a wasteful number, since it uses less digits than its factorization.

6990379544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111082 (or 1111078 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 56.

The square root of 6990379544 is about 83608.4896646268. The cubic root of 6990379544 is about 1912.0544347930.

The spelling of 6990379544 in words is "six billion, nine hundred ninety million, three hundred seventy-nine thousand, five hundred forty-four".