718844229450 has 384 divisors, whose sum is σ = 2092687488000. Its totient is φ = 181182355200.

The previous prime is 718844229443. The next prime is 718844229451. The reversal of 718844229450 is 54922448817.

718844229450 is a `hidden beast` number, since 7 + 1 + 8 + 84 + 422 + 94 + 50 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (718844229451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 469525185 + ... + 469526715.

It is an arithmetic number, because the mean of its divisors is an integer number (5449707000).

Almost surely, 2^718844229450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718844229450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1046343744000).

718844229450 is an abundant number, since it is smaller than the sum of its proper divisors (1373843258550).

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

718844229450 is a wasteful number, since it uses less digits than its factorization.

718844229450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1816 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 54.

The spelling of 718844229450 in words is "seven hundred eighteen billion, eight hundred forty-four million, two hundred twenty-nine thousand, four hundred fifty".