10618478850 has 144 divisors (see below), whose sum is σ = 30699151200. Its totient is φ = 2421861120.

The previous prime is 10618478813. The next prime is 10618478879. The reversal of 10618478850 is 5887481601.

It is a happy number.

It is a super-2 number, since 2×10618478850² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10618478850.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 4180881 + ... + 4183419.

It is an arithmetic number, because the mean of its divisors is an integer number (213188550).

Almost surely, 2^10618478850 is an apocalyptic number.

10618478850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10618478850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15349575600).

10618478850 is an abundant number, since it is smaller than the sum of its proper divisors (20080672350).

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

10618478850 is a wasteful number, since it uses less digits than its factorization.

10618478850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3137 (or 3125 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 10618478850 in words is "ten billion, six hundred eighteen million, four hundred seventy-eight thousand, eight hundred fifty".