7556976013 has 2 divisors, whose sum is σ = 7556976014. Its totient is φ = 7556976012.

The previous prime is 7556975977. The next prime is 7556976019. The reversal of 7556976013 is 3106796557.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4357716169 + 3199259844 = 66013^2 + 56562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7556976013 is a prime.

It is a super-2 number, since 2×7556976013² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7556976019) 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 as a sum of consecutive naturals, namely, 3778488006 + 3778488007.

It is an arithmetic number, because the mean of its divisors is an integer number (3778488007).

Almost surely, 2^7556976013 is an apocalyptic number.

It is an amenable number.

7556976013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7556976013 is an equidigital number, since it uses as much as digits as its factorization.

7556976013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1190700, while the sum is 49.

The square root of 7556976013 is about 86930.8691605002. The cubic root of 7556976013 is about 1962.3780670345.

The spelling of 7556976013 in words is "seven billion, five hundred fifty-six million, nine hundred seventy-six thousand, thirteen".