913091718388 has 12 divisors (see below), whose sum is σ = 1597992266052. Its totient is φ = 456522499520.

The previous prime is 913091718347. The next prime is 913091718421. The reversal of 913091718388 is 883817190319.

It can be written as a sum of positive squares in 2 ways, for example, as 676674050404 + 236417667984 = 822602^2 + 486228^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5751823 + ... + 5908438.

It is an arithmetic number, because the mean of its divisors is an integer number (133166022171).

Almost surely, 2^913091718388 is an apocalyptic number.

It is an amenable number.

913091718388 is a deficient number, since it is larger than the sum of its proper divisors (684900547664).

913091718388 is a wasteful number, since it uses less digits than its factorization.

913091718388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11679842 (or 11679840 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 58.

The spelling of 913091718388 in words is "nine hundred thirteen billion, ninety-one million, seven hundred eighteen thousand, three hundred eighty-eight".