918461564 has 12 divisors (see below), whose sum is σ = 1607589984. Its totient is φ = 459150144.

The previous prime is 918461549. The next prime is 918461591. The reversal of 918461564 is 465164819.

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, 10724 + ... + 44180.

It is an arithmetic number, because the mean of its divisors is an integer number (133965832).

Almost surely, 2^918461564 is an apocalyptic number.

It is an amenable number.

918461564 is a deficient number, since it is larger than the sum of its proper divisors (689128420).

918461564 is a wasteful number, since it uses less digits than its factorization.

918461564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40324 (or 40322 counting only the distinct ones).

The product of its digits is 207360, while the sum is 44.

The square root of 918461564 is about 30306.1307988994. The cubic root of 918461564 is about 972.0463985145.

The spelling of 918461564 in words is "nine hundred eighteen million, four hundred sixty-one thousand, five hundred sixty-four".