718011822 has 48 divisors (see below), whose sum is σ = 1581667920. Its totient is φ = 217134720.

The previous prime is 718011821. The next prime is 718011823. The reversal of 718011822 is 228110817.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (718011821) and next prime (718011823).

It is a self number, because there is not a number n which added to its sum of digits gives 718011822.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718011821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601258 + ... + 602450.

It is an arithmetic number, because the mean of its divisors is an integer number (32951415).

Almost surely, 2^718011822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718011822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (790833960).

718011822 is an abundant number, since it is smaller than the sum of its proper divisors (863656098).

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

718011822 is a wasteful number, since it uses less digits than its factorization.

718011822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049 (or 2038 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 718011822 is about 26795.7426096012. The cubic root of 718011822 is about 895.4552044958.

The spelling of 718011822 in words is "seven hundred eighteen million, eleven thousand, eight hundred twenty-two".