6858984953 has 2 divisors, whose sum is σ = 6858984954. Its totient is φ = 6858984952.

The previous prime is 6858984907. The next prime is 6858985031. The reversal of 6858984953 is 3594898586.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6274699369 + 584285584 = 79213^2 + 24172^2 .

It is a cyclic number.

It is not a de Polignac number, because 6858984953 - 2⁶ = 6858984889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6858984953.

It is not a weakly prime, because it can be changed into another prime (6858981953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3429492476 + 3429492477.

It is an arithmetic number, because the mean of its divisors is an integer number (3429492477).

Almost surely, 2^6858984953 is an apocalyptic number.

It is an amenable number.

6858984953 is a deficient number, since it is larger than the sum of its proper divisors (1).

6858984953 is an equidigital number, since it uses as much as digits as its factorization.

6858984953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74649600, while the sum is 65.

The square root of 6858984953 is about 82818.9890846296. The cubic root of 6858984953 is about 1899.9986106176.

The spelling of 6858984953 in words is "six billion, eight hundred fifty-eight million, nine hundred eighty-four thousand, nine hundred fifty-three".