10890606618 has 24 divisors (see below), whose sum is σ = 24838226400. Its totient is φ = 3439138824.

The previous prime is 10890606613. The next prime is 10890606641. The reversal of 10890606618 is 81660609801.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (10890606613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15921598 + ... + 15922281.

It is an arithmetic number, because the mean of its divisors is an integer number (1034926100).

Almost surely, 2^10890606618 is an apocalyptic number.

10890606618 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

10890606618 is an abundant number, since it is smaller than the sum of its proper divisors (13947619782).

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

10890606618 is a wasteful number, since it uses less digits than its factorization.

10890606618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31843906 (or 31843903 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 10890606618 in words is "ten billion, eight hundred ninety million, six hundred six thousand, six hundred eighteen".