651049863325 has 6 divisors (see below), whose sum is σ = 807301830554. Its totient is φ = 520839890640.

The previous prime is 651049863307. The next prime is 651049863329. The reversal of 651049863325 is 523368940156.

It can be written as a sum of positive squares in 3 ways, for example, as 164701235556 + 486348627769 = 405834^2 + 697387^2 .

It is not a de Polignac number, because 651049863325 - 2⁵ = 651049863293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651049863329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13020997242 + ... + 13020997291.

Almost surely, 2^651049863325 is an apocalyptic number.

It is an amenable number.

651049863325 is a deficient number, since it is larger than the sum of its proper divisors (156251967229).

651049863325 is a wasteful number, since it uses less digits than its factorization.

651049863325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26041994543 (or 26041994538 counting only the distinct ones).

The product of its (nonzero) digits is 4665600, while the sum is 52.

The spelling of 651049863325 in words is "six hundred fifty-one billion, forty-nine million, eight hundred sixty-three thousand, three hundred twenty-five".