134889686577 has 24 divisors (see below), whose sum is σ = 195350074920. Its totient is φ = 89691521280.

The previous prime is 134889686447. The next prime is 134889686593. The reversal of 134889686577 is 775686988431.

134889686577 is a `hidden beast` number, since 1 + 3 + 48 + 8 + 9 + 6 + 8 + 6 + 577 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 29501154081 + 105388532496 = 171759^2 + 324636^2 .

It is not a de Polignac number, because 134889686577 - 2¹¹ = 134889684529 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134889686177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11565733 + ... + 11577389.

It is an arithmetic number, because the mean of its divisors is an integer number (8139586455).

Almost surely, 2^134889686577 is an apocalyptic number.

It is an amenable number.

134889686577 is a deficient number, since it is larger than the sum of its proper divisors (60460388343).

134889686577 is a wasteful number, since it uses less digits than its factorization.

134889686577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14913 (or 14910 counting only the distinct ones).

The product of its digits is 487710720, while the sum is 72.

The spelling of 134889686577 in words is "one hundred thirty-four billion, eight hundred eighty-nine million, six hundred eighty-six thousand, five hundred seventy-seven".