918668534 has 16 divisors (see below), whose sum is σ = 1581140736. Its totient is φ = 392145000.

The previous prime is 918668497. The next prime is 918668587. The reversal of 918668534 is 435866819.

It is a congruent number.

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, 127202 + ... + 134229.

It is an arithmetic number, because the mean of its divisors is an integer number (98821296).

Almost surely, 2^918668534 is an apocalyptic number.

918668534 is a deficient number, since it is larger than the sum of its proper divisors (662472202).

918668534 is a wasteful number, since it uses less digits than its factorization.

918668534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261691.

The product of its digits is 1244160, while the sum is 50.

The square root of 918668534 is about 30309.5452621777. The cubic root of 918668534 is about 972.1194080415.

The spelling of 918668534 in words is "nine hundred eighteen million, six hundred sixty-eight thousand, five hundred thirty-four".