650779264 has 16 divisors (see below), whose sum is σ = 1296474570. Its totient is φ = 325389568.

The previous prime is 650779247. The next prime is 650779267. The reversal of 650779264 is 462977056.

It can be written as a sum of positive squares in only one way, i.e., 466905664 + 183873600 = 21608^2 + 13560^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is not an unprimeable number, because it can be changed into a prime (650779267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2541979 + ... + 2542234.

Almost surely, 2^650779264 is an apocalyptic number.

650779264 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

650779264 is a deficient number, since it is larger than the sum of its proper divisors (645695306).

650779264 is an equidigital number, since it uses as much as digits as its factorization.

650779264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5084227 (or 5084215 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 650779264 is about 25510.3756146396. The cubic root of 650779264 is about 866.5851357885.

The spelling of 650779264 in words is "six hundred fifty million, seven hundred seventy-nine thousand, two hundred sixty-four".