7520280764013 has 6 divisors (see below), whose sum is σ = 10862627770254. Its totient is φ = 5013520509336.

The previous prime is 7520280763979. The next prime is 7520280764027. The reversal of 7520280764013 is 3104670820257.

7520280764013 is a `hidden beast` number, since 7 + 520 + 2 + 8 + 0 + 76 + 40 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6163491439044 + 1356789324969 = 2482638^2 + 1164813^2 .

It is not a de Polignac number, because 7520280764013 - 2²⁸ = 7520012328557 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7520280764013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7520280764083) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 417793375770 + ... + 417793375787.

It is an arithmetic number, because the mean of its divisors is an integer number (1810437961709).

Almost surely, 2^{7520280764013} is an apocalyptic number.

It is an amenable number.

7520280764013 is a deficient number, since it is larger than the sum of its proper divisors (3342347006241).

7520280764013 is a wasteful number, since it uses less digits than its factorization.

7520280764013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835586751563 (or 835586751560 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 7520280764013 in words is "seven trillion, five hundred twenty billion, two hundred eighty million, seven hundred sixty-four thousand, thirteen".