650761764 has 12 divisors (see below), whose sum is σ = 1518444144. Its totient is φ = 216920584.

The previous prime is 650761763. The next prime is 650761781. The reversal of 650761764 is 467167056.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (650761763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27115062 + ... + 27115085.

It is an arithmetic number, because the mean of its divisors is an integer number (126537012).

Almost surely, 2^650761764 is an apocalyptic number.

It is an amenable number.

650761764 is an abundant number, since it is smaller than the sum of its proper divisors (867682380).

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

650761764 is a wasteful number, since it uses less digits than its factorization.

650761764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54230154 (or 54230152 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 650761764 is about 25510.0326146401. The cubic root of 650761764 is about 866.5773679853.

The spelling of 650761764 in words is "six hundred fifty million, seven hundred sixty-one thousand, seven hundred sixty-four".