6989854099 has 4 divisors (see below), whose sum is σ = 6998473720. Its totient is φ = 6981234480.

The previous prime is 6989854093. The next prime is 6989854103. The reversal of 6989854099 is 9904589896.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6989854099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6989854093) 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, 4308594 + ... + 4310215.

It is an arithmetic number, because the mean of its divisors is an integer number (1749618430).

Almost surely, 2^6989854099 is an apocalyptic number.

6989854099 is a deficient number, since it is larger than the sum of its proper divisors (8619621).

6989854099 is an equidigital number, since it uses as much as digits as its factorization.

6989854099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8619620.

The product of its (nonzero) digits is 50388480, while the sum is 67.

The square root of 6989854099 is about 83605.3473110423. The cubic root of 6989854099 is about 1912.0065258723.

The spelling of 6989854099 in words is "six billion, nine hundred eighty-nine million, eight hundred fifty-four thousand, ninety-nine".