649255744111 has 8 divisors (see below), whose sum is σ = 721753284224. Its totient is φ = 579980316960.

The previous prime is 649255744043. The next prime is 649255744133. The reversal of 649255744111 is 111447552946.

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 649255744111 - 2⁹ = 649255743599 is a prime.

It is a super-2 number, since 2×649255744111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (649255744211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805527816 + ... + 805528621.

It is an arithmetic number, because the mean of its divisors is an integer number (90219160528).

Almost surely, 2^649255744111 is an apocalyptic number.

649255744111 is a deficient number, since it is larger than the sum of its proper divisors (72497540113).

649255744111 is a wasteful number, since it uses less digits than its factorization.

649255744111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1611056481.

The product of its digits is 1209600, while the sum is 49.

The spelling of 649255744111 in words is "six hundred forty-nine billion, two hundred fifty-five million, seven hundred forty-four thousand, one hundred eleven".