4991649495 has 16 divisors (see below), whose sum is σ = 9127587840. Its totient is φ = 2281896864.

The previous prime is 4991649491. The next prime is 4991649521. The reversal of 4991649495 is 5949461994.

4991649495 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4991649495 - 2² = 4991649491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4991649491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23769655 + ... + 23769864.

It is an arithmetic number, because the mean of its divisors is an integer number (570474240).

Almost surely, 2^4991649495 is an apocalyptic number.

4991649495 is a deficient number, since it is larger than the sum of its proper divisors (4135938345).

4991649495 is a wasteful number, since it uses less digits than its factorization.

4991649495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47539534.

The product of its digits is 12597120, while the sum is 60.

The square root of 4991649495 is about 70651.6064573199. The cubic root of 4991649495 is about 1709.0234720573.

The spelling of 4991649495 in words is "four billion, nine hundred ninety-one million, six hundred forty-nine thousand, four hundred ninety-five".