651351623089 has 2 divisors, whose sum is σ = 651351623090. Its totient is φ = 651351623088.

The previous prime is 651351622981. The next prime is 651351623159. The reversal of 651351623089 is 980326153156.

It is a happy number.

651351623089 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403529857600 + 247821765489 = 635240^2 + 497817^2 .

It is a cyclic number.

It is not a de Polignac number, because 651351623089 - 2¹⁷ = 651351492017 is a prime.

It is not a weakly prime, because it can be changed into another prime (651351623189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325675811544 + 325675811545.

It is an arithmetic number, because the mean of its divisors is an integer number (325675811545).

Almost surely, 2^651351623089 is an apocalyptic number.

It is an amenable number.

651351623089 is a deficient number, since it is larger than the sum of its proper divisors (1).

651351623089 is an equidigital number, since it uses as much as digits as its factorization.

651351623089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 651351623089 in words is "six hundred fifty-one billion, three hundred fifty-one million, six hundred twenty-three thousand, eighty-nine".