85463236458 has 64 divisors (see below), whose sum is σ = 193264410240. Its totient is φ = 27990144000.

The previous prime is 85463236457. The next prime is 85463236471.

85463236458 is a `hidden beast` number, since 8 + 546 + 32 + 3 + 64 + 5 + 8 = 666.

85463236458 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (85463236457) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 654666 + ... + 774282.

It is an arithmetic number, because the mean of its divisors is an integer number (3019756410).

Almost surely, 2^85463236458 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 85463236458, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96632205120).

85463236458 is an abundant number, since it is smaller than the sum of its proper divisors (107801173782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85463236458 is a wasteful number, since it uses less digits than its factorization.

85463236458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119860 (or 119854 counting only the distinct ones).

The product of its digits is 16588800, while the sum is 54.

The spelling of 85463236458 in words is "eighty-five billion, four hundred sixty-three million, two hundred thirty-six thousand, four hundred fifty-eight".