650749947056 has 120 divisors (see below), whose sum is σ = 1431558374400. Its totient is φ = 286056777600.

The previous prime is 650749947019. The next prime is 650749947061.

650749947056 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is a self number, because there is not a number n which added to its sum of digits gives 650749947056.

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, 118768925 + ... + 118774403.

It is an arithmetic number, because the mean of its divisors is an integer number (11929653120).

Almost surely, 2^650749947056 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 650749947056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (715779187200).

650749947056 is an abundant number, since it is smaller than the sum of its proper divisors (780808427344).

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

650749947056 is a wasteful number, since it uses less digits than its factorization.

650749947056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7519 (or 7502 counting only the distinct ones).

The product of its (nonzero) digits is 57153600, while the sum is 62.

The spelling of 650749947056 in words is "six hundred fifty billion, seven hundred forty-nine million, nine hundred forty-seven thousand, fifty-six".