718581221002 has 16 divisors (see below), whose sum is σ = 1078886341440. Its totient is φ = 358952533632.

The previous prime is 718581220993. The next prime is 718581221053. The reversal of 718581221002 is 200122185817.

718581221002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18951499 + ... + 18989377.

It is an arithmetic number, because the mean of its divisors is an integer number (67430396340).

Almost surely, 2^718581221002 is an apocalyptic number.

718581221002 is a deficient number, since it is larger than the sum of its proper divisors (360305120438).

718581221002 is a wasteful number, since it uses less digits than its factorization.

718581221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46557.

The product of its (nonzero) digits is 17920, while the sum is 37.

The spelling of 718581221002 in words is "seven hundred eighteen billion, five hundred eighty-one million, two hundred twenty-one thousand, two".