651054125489 has 2 divisors, whose sum is σ = 651054125490. Its totient is φ = 651054125488.

The previous prime is 651054125471. The next prime is 651054125537. The reversal of 651054125489 is 984521450156.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 646456200625 + 4597924864 = 804025^2 + 67808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-651054125489 is a prime.

It is not a weakly prime, because it can be changed into another prime (651054124489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325527062744 + 325527062745.

It is an arithmetic number, because the mean of its divisors is an integer number (325527062745).

Almost surely, 2^651054125489 is an apocalyptic number.

It is an amenable number.

651054125489 is a deficient number, since it is larger than the sum of its proper divisors (1).

651054125489 is an equidigital number, since it uses as much as digits as its factorization.

651054125489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 50.

The spelling of 651054125489 in words is "six hundred fifty-one billion, fifty-four million, one hundred twenty-five thousand, four hundred eighty-nine".