7538857013 has 2 divisors, whose sum is σ = 7538857014. Its totient is φ = 7538857012.

The previous prime is 7538857003. The next prime is 7538857019. The reversal of 7538857013 is 3107588357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7424751889 + 114105124 = 86167^2 + 10682^2 .

It is a cyclic number.

It is not a de Polignac number, because 7538857013 - 2¹⁴ = 7538840629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7538857019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3769428506 + 3769428507.

It is an arithmetic number, because the mean of its divisors is an integer number (3769428507).

Almost surely, 2^7538857013 is an apocalyptic number.

It is an amenable number.

7538857013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7538857013 is an equidigital number, since it uses as much as digits as its factorization.

7538857013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 705600, while the sum is 47.

The square root of 7538857013 is about 86826.5916237647. The cubic root of 7538857013 is about 1960.8084452138.

The spelling of 7538857013 in words is "seven billion, five hundred thirty-eight million, eight hundred fifty-seven thousand, thirteen".