918319650 has 48 divisors (see below), whose sum is σ = 2338999104. Its totient is φ = 238265280.

The previous prime is 918319639. The next prime is 918319663. The reversal of 918319650 is 56913819.

918319650 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×918319650² = 1686621959152245000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77182 + ... + 88281.

It is an arithmetic number, because the mean of its divisors is an integer number (48729148).

Almost surely, 2^918319650 is an apocalyptic number.

918319650 is an abundant number, since it is smaller than the sum of its proper divisors (1420679454).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

918319650 is a wasteful number, since it uses less digits than its factorization.

918319650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165515 (or 165510 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 918319650 is about 30303.7893670082. The cubic root of 918319650 is about 971.9963314228.

The spelling of 918319650 in words is "nine hundred eighteen million, three hundred nineteen thousand, six hundred fifty".