6990017528 has 16 divisors (see below), whose sum is σ = 14114458680. Its totient is φ = 3226161888.

The previous prime is 6990017527. The next prime is 6990017537. The reversal of 6990017528 is 8257100996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6990017527) 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, 33605750 + ... + 33605957.

Almost surely, 2^6990017528 is an apocalyptic number.

It is an amenable number.

6990017528 is an abundant number, since it is smaller than the sum of its proper divisors (7124441152).

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

6990017528 is a wasteful number, since it uses less digits than its factorization.

6990017528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67211726 (or 67211722 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 6990017528 is about 83606.3246889851. The cubic root of 6990017528 is about 1912.0214272267.

The spelling of 6990017528 in words is "six billion, nine hundred ninety million, seventeen thousand, five hundred twenty-eight".