651992025280 has 112 divisors (see below), whose sum is σ = 1620847664064. Its totient is φ = 249336299520.

The previous prime is 651992025259. The next prime is 651992025281. The reversal of 651992025280 is 82520299156.

It is not an unprimeable number, because it can be changed into a prime (651992025281) 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 15 ways as a sum of consecutive naturals, for example, 15884464 + ... + 15925456.

Almost surely, 2^651992025280 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 651992025280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (810423832032).

651992025280 is an abundant number, since it is smaller than the sum of its proper divisors (968855638784).

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

651992025280 is a wasteful number, since it uses less digits than its factorization.

651992025280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43194 (or 43184 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 49.

The spelling of 651992025280 in words is "six hundred fifty-one billion, nine hundred ninety-two million, twenty-five thousand, two hundred eighty".