4491974718 has 240 divisors, whose sum is σ = 13317279360. Its totient is φ = 1104697440.

The previous prime is 4491974629. The next prime is 4491974723. The reversal of 4491974718 is 8174791944.

4491974718 is a `hidden beast` number, since 449 + 197 + 4 + 7 + 1 + 8 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2606205 + ... + 2607927.

It is an arithmetic number, because the mean of its divisors is an integer number (55488664).

Almost surely, 2^4491974718 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4491974718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6658639680).

4491974718 is an abundant number, since it is smaller than the sum of its proper divisors (8825304642).

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

4491974718 is a wasteful number, since it uses less digits than its factorization.

4491974718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1785 (or 1765 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 54.

The square root of 4491974718 is about 67022.1957115701. The cubic root of 4491974718 is about 1649.9815997948.

The spelling of 4491974718 in words is "four billion, four hundred ninety-one million, nine hundred seventy-four thousand, seven hundred eighteen".