650431260256 has 96 divisors (see below), whose sum is σ = 1427874104160. Its totient is φ = 289843347456.

The previous prime is 650431260251. The next prime is 650431260257. The reversal of 650431260256 is 652062134056.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (650431260251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24720900 + ... + 24747196.

It is an arithmetic number, because the mean of its divisors is an integer number (14873688585).

Almost surely, 2^650431260256 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 650431260256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (713937052080).

650431260256 is an abundant number, since it is smaller than the sum of its proper divisors (777442843904).

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

650431260256 is a wasteful number, since it uses less digits than its factorization.

650431260256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28736 (or 28728 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 650431260256 in words is "six hundred fifty billion, four hundred thirty-one million, two hundred sixty thousand, two hundred fifty-six".