7257127733 has 4 divisors (see below), whose sum is σ = 7257378540. Its totient is φ = 7256876928.

The previous prime is 7257127723. The next prime is 7257127747. The reversal of 7257127733 is 3377217527.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5637306724 + 1619821009 = 75082^2 + 40247^2 .

It is a cyclic number.

It is not a de Polignac number, because 7257127733 - 2¹⁸ = 7256865589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7257127723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75338 + ... + 142091.

It is an arithmetic number, because the mean of its divisors is an integer number (1814344635).

Almost surely, 2^7257127733 is an apocalyptic number.

It is an amenable number.

7257127733 is a deficient number, since it is larger than the sum of its proper divisors (250807).

7257127733 is a wasteful number, since it uses less digits than its factorization.

7257127733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250806.

The product of its digits is 432180, while the sum is 44.

The square root of 7257127733 is about 85188.7770366496. Note that the first 3 decimals coincide. The cubic root of 7257127733 is about 1936.0723786667.

The spelling of 7257127733 in words is "seven billion, two hundred fifty-seven million, one hundred twenty-seven thousand, seven hundred thirty-three".