6849999511 has 2 divisors, whose sum is σ = 6849999512. Its totient is φ = 6849999510.

The previous prime is 6849999479. The next prime is 6849999523. The reversal of 6849999511 is 1159999486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6849999511 - 2⁵ = 6849999479 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6849999511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6849999571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3424999755 + 3424999756.

It is an arithmetic number, because the mean of its divisors is an integer number (3424999756).

Almost surely, 2^6849999511 is an apocalyptic number.

6849999511 is a deficient number, since it is larger than the sum of its proper divisors (1).

6849999511 is an equidigital number, since it uses as much as digits as its factorization.

6849999511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6298560, while the sum is 61.

The square root of 6849999511 is about 82764.7238320772. The cubic root of 6849999511 is about 1899.1685661372.

The spelling of 6849999511 in words is "six billion, eight hundred forty-nine million, nine hundred ninety-nine thousand, five hundred eleven".