648311567751 has 12 divisors (see below), whose sum is σ = 942414694312. Its totient is φ = 429454795536.

The previous prime is 648311567737. The next prime is 648311567753. The reversal of 648311567751 is 157765113846.

648311567751 is a `hidden beast` number, since 6 + 4 + 8 + 3 + 1 + 1 + 567 + 75 + 1 = 666.

It is not a de Polignac number, because 648311567751 - 2⁵ = 648311567719 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 (648311567753) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 229408201 + ... + 229411026.

Almost surely, 2^648311567751 is an apocalyptic number.

648311567751 is a deficient number, since it is larger than the sum of its proper divisors (294103126561).

648311567751 is a wasteful number, since it uses less digits than its factorization.

648311567751 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458819390 (or 458819387 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The spelling of 648311567751 in words is "six hundred forty-eight billion, three hundred eleven million, five hundred sixty-seven thousand, seven hundred fifty-one".