649018948347 has 24 divisors (see below), whose sum is σ = 1168796029440. Its totient is φ = 337152700080.

The previous prime is 649018948343. The next prime is 649018948363. The reversal of 649018948347 is 743849810946.

649018948347 is a `hidden beast` number, since 6 + 490 + 18 + 94 + 8 + 3 + 47 = 666.

It is not a de Polignac number, because 649018948347 - 2² = 649018948343 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (649018948343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 468266947 + ... + 468268332.

It is an arithmetic number, because the mean of its divisors is an integer number (48699834560).

Almost surely, 2^649018948347 is an apocalyptic number.

649018948347 is a deficient number, since it is larger than the sum of its proper divisors (519777081093).

649018948347 is a wasteful number, since it uses less digits than its factorization.

649018948347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 936535303 (or 936535300 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 63.

The spelling of 649018948347 in words is "six hundred forty-nine billion, eighteen million, nine hundred forty-eight thousand, three hundred forty-seven".