6985126490 has 16 divisors (see below), whose sum is σ = 12602407680. Its totient is φ = 2787566160.

The previous prime is 6985126459. The next prime is 6985126493. The reversal of 6985126490 is 946215896.

It is not an unprimeable number, because it can be changed into a prime (6985126493) 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 7 ways as a sum of consecutive naturals, for example, 806030 + ... + 814649.

It is an arithmetic number, because the mean of its divisors is an integer number (787650480).

Almost surely, 2^6985126490 is an apocalyptic number.

6985126490 is a deficient number, since it is larger than the sum of its proper divisors (5617281190).

6985126490 is a wasteful number, since it uses less digits than its factorization.

6985126490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621117.

The product of its (nonzero) digits is 933120, while the sum is 50.

The square root of 6985126490 is about 83577.0691637365. The cubic root of 6985126490 is about 1911.5753648496.

The spelling of 6985126490 in words is "six billion, nine hundred eighty-five million, one hundred twenty-six thousand, four hundred ninety".