86538574667537 has 2 divisors, whose sum is σ = 86538574667538. Its totient is φ = 86538574667536.

The previous prime is 86538574667497. The next prime is 86538574667593. The reversal of 86538574667537 is 73576647583568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50024061327361 + 36514513340176 = 7072769^2 + 6042724^2 .

It is a cyclic number.

It is not a de Polignac number, because 86538574667537 - 2¹² = 86538574663441 is a prime.

It is not a weakly prime, because it can be changed into another prime (86538564667537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43269287333768 + 43269287333769.

It is an arithmetic number, because the mean of its divisors is an integer number (43269287333769).

Almost surely, 2^{86538574667537} is an apocalyptic number.

It is an amenable number.

86538574667537 is a deficient number, since it is larger than the sum of its proper divisors (1).

86538574667537 is an equidigital number, since it uses as much as digits as its factorization.

86538574667537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21337344000, while the sum is 80.

The spelling of 86538574667537 in words is "eighty-six trillion, five hundred thirty-eight billion, five hundred seventy-four million, six hundred sixty-seven thousand, five hundred thirty-seven".