649243114643 has 8 divisors (see below), whose sum is σ = 656717594112. Its totient is φ = 641805546816.

The previous prime is 649243114627. The next prime is 649243114697. The reversal of 649243114643 is 346411342946.

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 649243114643 - 2⁴ = 649243114627 is a prime.

It is a super-2 number, since 2×649243114643² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (649243414643) 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, 9192530 + ... + 9262887.

It is an arithmetic number, because the mean of its divisors is an integer number (82089699264).

Almost surely, 2^649243114643 is an apocalyptic number.

649243114643 is a deficient number, since it is larger than the sum of its proper divisors (7474479469).

649243114643 is a wasteful number, since it uses less digits than its factorization.

649243114643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18455821.

The product of its digits is 1492992, while the sum is 47.

The spelling of 649243114643 in words is "six hundred forty-nine billion, two hundred forty-three million, one hundred fourteen thousand, six hundred forty-three".