7068749840 has 40 divisors (see below), whose sum is σ = 16438453080. Its totient is φ = 2826878976.

The previous prime is 7068749819. The next prime is 7068749879. The reversal of 7068749840 is 489478607.

It can be written as a sum of positive squares in 4 ways, for example, as 2291728384 + 4777021456 = 47872^2 + 69116^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 577706 + ... + 589814.

It is an arithmetic number, because the mean of its divisors is an integer number (410961327).

Almost surely, 2^7068749840 is an apocalyptic number.

It is an amenable number.

7068749840 is an abundant number, since it is smaller than the sum of its proper divisors (9369703240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7068749840 is a wasteful number, since it uses less digits than its factorization.

7068749840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19419 (or 19413 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 53.

The square root of 7068749840 is about 84075.8576524795. The cubic root of 7068749840 is about 1919.1733492894.

The spelling of 7068749840 in words is "seven billion, sixty-eight million, seven hundred forty-nine thousand, eight hundred forty".