85418844642 has 48 divisors (see below), whose sum is σ = 190953210240. Its totient is φ = 27582081696.

The previous prime is 85418844587. The next prime is 85418844647. The reversal of 85418844642 is 24644881458.

85418844642 is a `hidden beast` number, since 85 + 4 + 1 + 88 + 446 + 42 = 666.

It is not an unprimeable number, because it can be changed into a prime (85418844647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 491328 + ... + 642059.

It is an arithmetic number, because the mean of its divisors is an integer number (3978191880).

Almost surely, 2^85418844642 is an apocalyptic number.

85418844642 is an abundant number, since it is smaller than the sum of its proper divisors (105534365598).

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

85418844642 is a wasteful number, since it uses less digits than its factorization.

85418844642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133527 (or 1133524 counting only the distinct ones).

The product of its digits is 7864320, while the sum is 54.

The spelling of 85418844642 in words is "eighty-five billion, four hundred eighteen million, eight hundred forty-four thousand, six hundred forty-two".