538639540487 has 2 divisors, whose sum is σ = 538639540488. Its totient is φ = 538639540486.

The previous prime is 538639540451. The next prime is 538639540493. The reversal of 538639540487 is 784045936835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 538639540487 - 2¹⁶ = 538639474951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (538639545487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269319770243 + 269319770244.

It is an arithmetic number, because the mean of its divisors is an integer number (269319770244).

Almost surely, 2^538639540487 is an apocalyptic number.

538639540487 is a deficient number, since it is larger than the sum of its proper divisors (1).

538639540487 is an equidigital number, since it uses as much as digits as its factorization.

538639540487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87091200, while the sum is 62.

The spelling of 538639540487 in words is "five hundred thirty-eight billion, six hundred thirty-nine million, five hundred forty thousand, four hundred eighty-seven".