85630401618 has 16 divisors (see below), whose sum is σ = 172410206400. Its totient is φ = 28351900016.

The previous prime is 85630401613. The next prime is 85630401629. The reversal of 85630401618 is 81610403658.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85630401618.

It is not an unprimeable number, because it can be changed into a prime (85630401611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47890830 + ... + 47892617.

It is an arithmetic number, because the mean of its divisors is an integer number (10775637900).

Almost surely, 2^85630401618 is an apocalyptic number.

85630401618 is an abundant number, since it is smaller than the sum of its proper divisors (86779804782).

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

85630401618 is a wasteful number, since it uses less digits than its factorization.

85630401618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95783601.

The product of its (nonzero) digits is 138240, while the sum is 42.

It can be divided in two parts, 8563040 and 1618, that added together give a palindrome (8564658).

The spelling of 85630401618 in words is "eighty-five billion, six hundred thirty million, four hundred one thousand, six hundred eighteen".