7502721068 has 6 divisors (see below), whose sum is σ = 13129761876. Its totient is φ = 3751360532.

The previous prime is 7502721053. The next prime is 7502721103. The reversal of 7502721068 is 8601272057.

It is a super-2 number, since 2×7502721068² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 937840130 + ... + 937840137.

It is an arithmetic number, because the mean of its divisors is an integer number (2188293646).

Almost surely, 2^7502721068 is an apocalyptic number.

It is an amenable number.

7502721068 is a deficient number, since it is larger than the sum of its proper divisors (5627040808).

7502721068 is a wasteful number, since it uses less digits than its factorization.

7502721068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1875680271 (or 1875680269 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 7502721068 is about 86618.2490471840. The cubic root of 7502721068 is about 1957.6705168741.

The spelling of 7502721068 in words is "seven billion, five hundred two million, seven hundred twenty-one thousand, sixty-eight".