86538536654177 has 2 divisors, whose sum is σ = 86538536654178. Its totient is φ = 86538536654176.

The previous prime is 86538536654131. The next prime is 86538536654239. The reversal of 86538536654177 is 77145663583568.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84703381461136 + 1835155193041 = 9203444^2 + 1354679^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86538536654177 is a prime.

It is not a weakly prime, because it can be changed into another prime (86538536654077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43269268327088 + 43269268327089.

It is an arithmetic number, because the mean of its divisors is an integer number (43269268327089).

Almost surely, 2^{86538536654177} is an apocalyptic number.

It is an amenable number.

86538536654177 is a deficient number, since it is larger than the sum of its proper divisors (1).

86538536654177 is an equidigital number, since it uses as much as digits as its factorization.

86538536654177 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3048192000, while the sum is 74.

The spelling of 86538536654177 in words is "eighty-six trillion, five hundred thirty-eight billion, five hundred thirty-six million, six hundred fifty-four thousand, one hundred seventy-seven".