649347534855 has 96 divisors (see below), whose sum is σ = 1275033839040. Its totient is φ = 303729315840.

The previous prime is 649347534853. The next prime is 649347534881. The reversal of 649347534855 is 558435743946.

649347534855 is a `hidden beast` number, since 6 + 4 + 9 + 3 + 47 + 534 + 8 + 55 = 666.

It is not a de Polignac number, because 649347534855 - 2¹ = 649347534853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 649347534792 and 649347534801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649347534853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 520449 + ... + 1252821.

It is an arithmetic number, because the mean of its divisors is an integer number (13281602490).

Almost surely, 2^649347534855 is an apocalyptic number.

649347534855 is a deficient number, since it is larger than the sum of its proper divisors (625686304185).

649347534855 is a wasteful number, since it uses less digits than its factorization.

649347534855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732481 (or 732478 counting only the distinct ones).

The product of its digits is 217728000, while the sum is 63.

The spelling of 649347534855 in words is "six hundred forty-nine billion, three hundred forty-seven million, five hundred thirty-four thousand, eight hundred fifty-five".