651047922 has 64 divisors (see below), whose sum is σ = 1665484800. Its totient is φ = 184660560.

The previous prime is 651047921. The next prime is 651047951. The reversal of 651047922 is 229740156.

It is not an unprimeable number, because it can be changed into a prime (651047921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46347 + ... + 58737.

It is an arithmetic number, because the mean of its divisors is an integer number (26023200).

Almost surely, 2^651047922 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 651047922, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (832742400).

651047922 is an abundant number, since it is smaller than the sum of its proper divisors (1014436878).

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

651047922 is a wasteful number, since it uses less digits than its factorization.

651047922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12548 (or 12542 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 651047922 is about 25515.6407326957. The cubic root of 651047922 is about 866.7043687412.

The spelling of 651047922 in words is "six hundred fifty-one million, forty-seven thousand, nine hundred twenty-two".