4976507991 has 16 divisors (see below), whose sum is σ = 8166577664. Its totient is φ = 2624971104.

The previous prime is 4976507989. The next prime is 4976507993. The reversal of 4976507991 is 1997056794.

It is an interprime number because it is at equal distance from previous prime (4976507989) and next prime (4976507993).

It is not a de Polignac number, because 4976507991 - 2¹ = 4976507989 is a prime.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4976507993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9114211 + ... + 9114756.

It is an arithmetic number, because the mean of its divisors is an integer number (510411104).

Almost surely, 2^4976507991 is an apocalyptic number.

4976507991 is a deficient number, since it is larger than the sum of its proper divisors (3190069673).

4976507991 is a wasteful number, since it uses less digits than its factorization.

4976507991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18228990.

The product of its (nonzero) digits is 4286520, while the sum is 57.

The square root of 4976507991 is about 70544.3689531631. The cubic root of 4976507991 is about 1707.2936901521.

The spelling of 4976507991 in words is "four billion, nine hundred seventy-six million, five hundred seven thousand, nine hundred ninety-one".