818060074440 has 384 divisors, whose sum is σ = 2878959283200. Its totient is φ = 185412810240.

The previous prime is 818060074439. The next prime is 818060074459. The reversal of 818060074440 is 44470060818.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 818060074392 and 818060074401.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 560698431 + ... + 560699889.

It is an arithmetic number, because the mean of its divisors is an integer number (7497289800).

Almost surely, 2^818060074440 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 818060074440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1439479641600).

818060074440 is an abundant number, since it is smaller than the sum of its proper divisors (2060899208760).

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

818060074440 is a wasteful number, since it uses less digits than its factorization.

818060074440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2214 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 818060074440 in words is "eight hundred eighteen billion, sixty million, seventy-four thousand, four hundred forty".