651049863329 has 2 divisors, whose sum is σ = 651049863330. Its totient is φ = 651049863328.

The previous prime is 651049863307. The next prime is 651049863337. The reversal of 651049863329 is 923368940156.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 574139598400 + 76910264929 = 757720^2 + 277327^2 .

It is a cyclic number.

It is not a de Polignac number, because 651049863329 - 2¹² = 651049859233 is a prime.

It is not a weakly prime, because it can be changed into another prime (651049863229) 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 as a sum of consecutive naturals, namely, 325524931664 + 325524931665.

It is an arithmetic number, because the mean of its divisors is an integer number (325524931665).

Almost surely, 2^651049863329 is an apocalyptic number.

It is an amenable number.

651049863329 is a deficient number, since it is larger than the sum of its proper divisors (1).

651049863329 is an equidigital number, since it uses as much as digits as its factorization.

651049863329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8398080, while the sum is 56.

The spelling of 651049863329 in words is "six hundred fifty-one billion, forty-nine million, eight hundred sixty-three thousand, three hundred twenty-nine".