18362276856 has 480 divisors, whose sum is σ = 68727225600. Its totient is φ = 4516767360.

The previous prime is 18362276747. The next prime is 18362276857. The reversal of 18362276856 is 65867226381.

18362276856 is a `hidden beast` number, since 1 + 8 + 3 + 622 + 7 + 6 + 8 + 5 + 6 = 666.

It is a super-2 number, since 2×18362276856² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18362276857) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 6634785 + ... + 6637551.

It is an arithmetic number, because the mean of its divisors is an integer number (143181720).

Almost surely, 2^18362276856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18362276856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34363612800).

18362276856 is an abundant number, since it is smaller than the sum of its proper divisors (50364948744).

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

18362276856 is a wasteful number, since it uses less digits than its factorization.

18362276856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829 (or 2809 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 18362276856 in words is "eighteen billion, three hundred sixty-two million, two hundred seventy-six thousand, eight hundred fifty-six".