918649756 has 12 divisors (see below), whose sum is σ = 1608636568. Its totient is φ = 459039312.

The previous prime is 918649747. The next prime is 918649777. The reversal of 918649756 is 657946819.

It is a junction number, because it is equal to n+sod(n) for n = 918649697 and 918649706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64071 + ... + 77086.

Almost surely, 2^918649756 is an apocalyptic number.

It is an amenable number.

918649756 is a deficient number, since it is larger than the sum of its proper divisors (689986812).

918649756 is a wasteful number, since it uses less digits than its factorization.

918649756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142788 (or 142786 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 918649756 is about 30309.2354901934. The cubic root of 918649756 is about 972.1127844763.

The spelling of 918649756 in words is "nine hundred eighteen million, six hundred forty-nine thousand, seven hundred fifty-six".