7135521872757 has 32 divisors (see below), whose sum is σ = 9719716331520. Its totient is φ = 4655175584640.

The previous prime is 7135521872741. The next prime is 7135521872777. The reversal of 7135521872757 is 7572781255317.

It is not a de Polignac number, because 7135521872757 - 2⁴ = 7135521872741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7135521872757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7135521872777) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381182044 + ... + 381200762.

It is an arithmetic number, because the mean of its divisors is an integer number (303741135360).

Almost surely, 2^{7135521872757} is an apocalyptic number.

It is an amenable number.

7135521872757 is a deficient number, since it is larger than the sum of its proper divisors (2584194458763).

7135521872757 is a wasteful number, since it uses less digits than its factorization.

7135521872757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31993.

The product of its digits is 28812000, while the sum is 60.

The spelling of 7135521872757 in words is "seven trillion, one hundred thirty-five billion, five hundred twenty-one million, eight hundred seventy-two thousand, seven hundred fifty-seven".