6998964993 has 6 divisors (see below), whose sum is σ = 10109616114. Its totient is φ = 4665976656.

The previous prime is 6998964971. The next prime is 6998965007. The reversal of 6998964993 is 3994698996.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3661823169 + 3337141824 = 60513^2 + 57768^2 .

It is not a de Polignac number, because 6998964993 - 2¹³ = 6998956801 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6998924993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 388831380 + ... + 388831397.

It is an arithmetic number, because the mean of its divisors is an integer number (1684936019).

Almost surely, 2^6998964993 is an apocalyptic number.

It is an amenable number.

6998964993 is a deficient number, since it is larger than the sum of its proper divisors (3110651121).

6998964993 is a wasteful number, since it uses less digits than its factorization.

6998964993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777662783 (or 777662780 counting only the distinct ones).

The product of its digits is 204073344, while the sum is 72.

The square root of 6998964993 is about 83659.8170748658. The cubic root of 6998964993 is about 1912.8368973079.

The spelling of 6998964993 in words is "six billion, nine hundred ninety-eight million, nine hundred sixty-four thousand, nine hundred ninety-three".