538897289507 has 2 divisors, whose sum is σ = 538897289508. Its totient is φ = 538897289506.

The previous prime is 538897289473. The next prime is 538897289521. The reversal of 538897289507 is 705982798835.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-538897289507 is a prime.

It is not a weakly prime, because it can be changed into another prime (538897889507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269448644753 + 269448644754.

It is an arithmetic number, because the mean of its divisors is an integer number (269448644754).

Almost surely, 2^538897289507 is an apocalyptic number.

538897289507 is a deficient number, since it is larger than the sum of its proper divisors (1).

538897289507 is an equidigital number, since it uses as much as digits as its factorization.

538897289507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 304819200, while the sum is 71.

The spelling of 538897289507 in words is "five hundred thirty-eight billion, eight hundred ninety-seven million, two hundred eighty-nine thousand, five hundred seven".