651808541260 has 12 divisors (see below), whose sum is σ = 1368797936688. Its totient is φ = 260723416496.

The previous prime is 651808541173. The next prime is 651808541261. The reversal of 651808541260 is 62145808156.

It is a self number, because there is not a number n which added to its sum of digits gives 651808541260.

It is not an unprimeable number, because it can be changed into a prime (651808541261) 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 3 ways as a sum of consecutive naturals, for example, 16295213512 + ... + 16295213551.

It is an arithmetic number, because the mean of its divisors is an integer number (114066494724).

Almost surely, 2^651808541260 is an apocalyptic number.

It is an amenable number.

651808541260 is an abundant number, since it is smaller than the sum of its proper divisors (716989395428).

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

651808541260 is a wasteful number, since it uses less digits than its factorization.

651808541260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32590427072 (or 32590427070 counting only the distinct ones).

The product of its (nonzero) digits is 460800, while the sum is 46.

The spelling of 651808541260 in words is "six hundred fifty-one billion, eight hundred eight million, five hundred forty-one thousand, two hundred sixty".