648984998763 has 6 divisors (see below), whose sum is σ = 937422776004. Its totient is φ = 432656665836.

The previous prime is 648984998731. The next prime is 648984998797. The reversal of 648984998763 is 367899489846.

648984998763 is a `hidden beast` number, since 6 + 48 + 9 + 8 + 499 + 87 + 6 + 3 = 666.

648984998763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 648984998763 - 2⁵ = 648984998731 is a prime.

It is a super-2 number, since 2×648984998763² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (648984918763) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36054722145 + ... + 36054722162.

It is an arithmetic number, because the mean of its divisors is an integer number (156237129334).

Almost surely, 2^648984998763 is an apocalyptic number.

648984998763 is a deficient number, since it is larger than the sum of its proper divisors (288437777241).

648984998763 is a wasteful number, since it uses less digits than its factorization.

648984998763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72109444313 (or 72109444310 counting only the distinct ones).

The product of its digits is 4514807808, while the sum is 81.

The spelling of 648984998763 in words is "six hundred forty-eight billion, nine hundred eighty-four million, nine hundred ninety-eight thousand, seven hundred sixty-three".