650777712 has 80 divisors (see below), whose sum is σ = 1817696160. Its totient is φ = 199443456.

The previous prime is 650777689. The next prime is 650777737. The reversal of 650777712 is 217777056.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165918 + ... + 169794.

It is an arithmetic number, because the mean of its divisors is an integer number (22721202).

Almost surely, 2^650777712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 650777712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (908848080).

650777712 is an abundant number, since it is smaller than the sum of its proper divisors (1166918448).

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

650777712 is a wasteful number, since it uses less digits than its factorization.

650777712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4170 (or 4164 counting only the distinct ones).

The product of its (nonzero) digits is 144060, while the sum is 42.

The square root of 650777712 is about 25510.3451956260. The cubic root of 650777712 is about 866.5844469010.

The spelling of 650777712 in words is "six hundred fifty million, seven hundred seventy-seven thousand, seven hundred twelve".