6890658789 has 16 divisors (see below), whose sum is σ = 10501414400. Its totient is φ = 3937008240.

The previous prime is 6890658787. The next prime is 6890658829. The reversal of 6890658789 is 9878560986.

It is not a de Polignac number, because 6890658789 - 2¹ = 6890658787 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6890658787) 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, 195834 + ... + 228324.

It is an arithmetic number, because the mean of its divisors is an integer number (656338400).

Almost surely, 2^6890658789 is an apocalyptic number.

It is an amenable number.

6890658789 is a deficient number, since it is larger than the sum of its proper divisors (3610755611).

6890658789 is a wasteful number, since it uses less digits than its factorization.

6890658789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42600.

The product of its (nonzero) digits is 52254720, while the sum is 66.

The square root of 6890658789 is about 83009.9921033607. The cubic root of 6890658789 is about 1902.9187631411.

The spelling of 6890658789 in words is "six billion, eight hundred ninety million, six hundred fifty-eight thousand, seven hundred eighty-nine".