4991768265 has 32 divisors (see below), whose sum is σ = 8716087296. Its totient is φ = 2419367360.

The previous prime is 4991768237. The next prime is 4991768267. The reversal of 4991768265 is 5628671994.

It is not a de Polignac number, because 4991768265 - 2⁵ = 4991768233 is a prime.

It is a super-2 number, since 2×4991768265² = 49835500822922220450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4991768267) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 822472 + ... + 828518.

It is an arithmetic number, because the mean of its divisors is an integer number (272377728).

Almost surely, 2^4991768265 is an apocalyptic number.

It is an amenable number.

4991768265 is a deficient number, since it is larger than the sum of its proper divisors (3724319031).

4991768265 is a wasteful number, since it uses less digits than its factorization.

4991768265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11069.

The product of its digits is 6531840, while the sum is 57.

The square root of 4991768265 is about 70652.4469852248. The cubic root of 4991768265 is about 1709.0370266353.

The spelling of 4991768265 in words is "four billion, nine hundred ninety-one million, seven hundred sixty-eight thousand, two hundred sixty-five".