85854534658 has 32 divisors (see below), whose sum is σ = 134886850560. Its totient is φ = 40933578000.

The previous prime is 85854534653. The next prime is 85854534707. The reversal of 85854534658 is 85643545858.

It is a super-2 number, since 2×85854534658² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85854534596 and 85854534605.

It is not an unprimeable number, because it can be changed into a prime (85854534653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9288003 + ... + 9297241.

It is an arithmetic number, because the mean of its divisors is an integer number (4215214080).

Almost surely, 2^85854534658 is an apocalyptic number.

85854534658 is a deficient number, since it is larger than the sum of its proper divisors (49032315902).

85854534658 is a wasteful number, since it uses less digits than its factorization.

85854534658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11454.

The product of its digits is 92160000, while the sum is 61.

The spelling of 85854534658 in words is "eighty-five billion, eight hundred fifty-four million, five hundred thirty-four thousand, six hundred fifty-eight".