649037936267 has 8 divisors (see below), whose sum is σ = 741800987136. Its totient is φ = 556285721832.

The previous prime is 649037936257. The next prime is 649037936293. The reversal of 649037936267 is 762639730946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 649037936267 - 2³⁸ = 374160029323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649037936207) 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 7 ways as a sum of consecutive naturals, for example, 2580353 + ... + 2820690.

It is an arithmetic number, because the mean of its divisors is an integer number (92725123392).

Almost surely, 2^649037936267 is an apocalyptic number.

649037936267 is a deficient number, since it is larger than the sum of its proper divisors (92763050869).

649037936267 is a wasteful number, since it uses less digits than its factorization.

649037936267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418217.

The product of its (nonzero) digits is 61725888, while the sum is 62.

The spelling of 649037936267 in words is "six hundred forty-nine billion, thirty-seven million, nine hundred thirty-six thousand, two hundred sixty-seven".