649452244995 has 192 divisors, whose sum is σ = 1267643520000. Its totient is φ = 305665228800.

The previous prime is 649452244939. The next prime is 649452244997. The reversal of 649452244995 is 599442254946.

649452244995 is a `hidden beast` number, since 6 + 4 + 94 + 52 + 2 + 4 + 499 + 5 = 666.

It is a Cunningham number, because it is equal to 805886²-1.

It is not a de Polignac number, because 649452244995 - 2⁷ = 649452244867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (649452244997) 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 191 ways as a sum of consecutive naturals, for example, 1095197419 + ... + 1095198011.

It is an arithmetic number, because the mean of its divisors is an integer number (6602310000).

Almost surely, 2^649452244995 is an apocalyptic number.

649452244995 is a deficient number, since it is larger than the sum of its proper divisors (618191275005).

649452244995 is a wasteful number, since it uses less digits than its factorization.

649452244995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290 (or 1287 counting only the distinct ones).

The product of its digits is 111974400, while the sum is 63.

The spelling of 649452244995 in words is "six hundred forty-nine billion, four hundred fifty-two million, two hundred forty-four thousand, nine hundred ninety-five".