85463636458 has 32 divisors (see below), whose sum is σ = 133324062480. Its totient is φ = 41055805440.

The previous prime is 85463636437. The next prime is 85463636473.

85463636458 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 75868846249 + 9594790209 = 275443^2 + 97953^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4041978 + ... + 4063066.

Almost surely, 2^85463636458 is an apocalyptic number.

85463636458 is a deficient number, since it is larger than the sum of its proper divisors (47860426022).

85463636458 is a wasteful number, since it uses less digits than its factorization.

85463636458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21882.

The product of its digits is 49766400, while the sum is 58.

The spelling of 85463636458 in words is "eighty-five billion, four hundred sixty-three million, six hundred thirty-six thousand, four hundred fifty-eight".