7122840753 has 24 divisors (see below), whose sum is σ = 11199026208. Its totient is φ = 4014432576.

The previous prime is 7122840719. The next prime is 7122840773. The reversal of 7122840753 is 3570482217.

It is not a de Polignac number, because 7122840753 - 2¹⁰ = 7122839729 is a prime.

It is a super-3 number, since 3×7122840753³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (7122840773) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 321151 + ... + 342612.

It is an arithmetic number, because the mean of its divisors is an integer number (466626092).

Almost surely, 2^7122840753 is an apocalyptic number.

7122840753 is a gapful number since it is divisible by the number (73) formed by its first and last digit.

It is an amenable number.

7122840753 is a deficient number, since it is larger than the sum of its proper divisors (4076185455).

7122840753 is a wasteful number, since it uses less digits than its factorization.

7122840753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663853 (or 663846 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 7122840753 is about 84396.9238361209. The cubic root of 7122840753 is about 1924.0561632032.

The spelling of 7122840753 in words is "seven billion, one hundred twenty-two million, eight hundred forty thousand, seven hundred fifty-three".