6990130448 has 80 divisors (see below), whose sum is σ = 16406271360. Its totient is φ = 2816514048.

The previous prime is 6990130447. The next prime is 6990130463. The reversal of 6990130448 is 8440310996.

It is a Cunningham number, because it is equal to 83607²-1.

It is a junction number, because it is equal to n+sod(n) for n = 6990130399 and 6990130408.

It is not an unprimeable number, because it can be changed into a prime (6990130447) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2841443 + ... + 2843901.

It is an arithmetic number, because the mean of its divisors is an integer number (205078392).

Almost surely, 2^6990130448 is an apocalyptic number.

6990130448 is a gapful number since it is divisible by the number (68) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6990130448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8203135680).

6990130448 is an abundant number, since it is smaller than the sum of its proper divisors (9416140912).

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

6990130448 is a wasteful number, since it uses less digits than its factorization.

6990130448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984 (or 3978 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 6990130448 is about 83606.9999940196. Note that the first 5 decimals coincide. The cubic root of 6990130448 is about 1912.0317230663.

The spelling of 6990130448 in words is "six billion, nine hundred ninety million, one hundred thirty thousand, four hundred forty-eight".