4931111649 has 4 divisors (see below), whose sum is σ = 6574815536. Its totient is φ = 3287407764.

The previous prime is 4931111623. The next prime is 4931111659. The reversal of 4931111649 is 9461111394.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4931111649 - 2¹² = 4931107553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4931111659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 821851939 + ... + 821851944.

It is an arithmetic number, because the mean of its divisors is an integer number (1643703884).

Almost surely, 2^4931111649 is an apocalyptic number.

It is an amenable number.

4931111649 is a deficient number, since it is larger than the sum of its proper divisors (1643703887).

4931111649 is a wasteful number, since it uses less digits than its factorization.

4931111649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1643703886.

The product of its digits is 23328, while the sum is 39.

The square root of 4931111649 is about 70221.8744338258. The cubic root of 4931111649 is about 1702.0864404182.

The spelling of 4931111649 in words is "four billion, nine hundred thirty-one million, one hundred eleven thousand, six hundred forty-nine".