650777148 has 54 divisors (see below), whose sum is σ = 1881193496. Its totient is φ = 185820624.

The previous prime is 650777147. The next prime is 650777177. The reversal of 650777148 is 841777056.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650777143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 404161 + ... + 405767.

Almost surely, 2^650777148 is an apocalyptic number.

It is an amenable number.

650777148 is an abundant number, since it is smaller than the sum of its proper divisors (1230416348).

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

650777148 is a wasteful number, since it uses less digits than its factorization.

650777148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231 (or 1619 counting only the distinct ones).

The product of its (nonzero) digits is 329280, while the sum is 45.

The square root of 650777148 is about 25510.3341412848. The cubic root of 650777148 is about 866.5841965576.

The spelling of 650777148 in words is "six hundred fifty million, seven hundred seventy-seven thousand, one hundred forty-eight".