6989474280 has 64 divisors (see below), whose sum is σ = 21084336000. Its totient is φ = 1853556480.

The previous prime is 6989474267. The next prime is 6989474281. The reversal of 6989474280 is 824749896.

It is a self number, because there is not a number n which added to its sum of digits gives 6989474280.

It is not an unprimeable number, because it can be changed into a prime (6989474281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139180 + ... + 182619.

It is an arithmetic number, because the mean of its divisors is an integer number (329442750).

Almost surely, 2^6989474280 is an apocalyptic number.

6989474280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6989474280 is an abundant number, since it is smaller than the sum of its proper divisors (14094861720).

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

6989474280 is a wasteful number, since it uses less digits than its factorization.

6989474280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321994 (or 321990 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The square root of 6989474280 is about 83603.0757807391. The cubic root of 6989474280 is about 1911.9718933153.

The spelling of 6989474280 in words is "six billion, nine hundred eighty-nine million, four hundred seventy-four thousand, two hundred eighty".