4891459977 has 12 divisors (see below), whose sum is σ = 7256400580. Its totient is φ = 3172838688.

The previous prime is 4891459939. The next prime is 4891459987. The reversal of 4891459977 is 7799541984.

4891459977 is a `hidden beast` number, since 4 + 8 + 91 + 459 + 97 + 7 = 666.

4891459977 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3662186256 + 1229273721 = 60516^2 + 35061^2 .

It is not a de Polignac number, because 4891459977 - 2⁷ = 4891459849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4891459907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7344202 + ... + 7344867.

Almost surely, 2^4891459977 is an apocalyptic number.

It is an amenable number.

4891459977 is a deficient number, since it is larger than the sum of its proper divisors (2364940603).

4891459977 is a wasteful number, since it uses less digits than its factorization.

4891459977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689112 (or 14689109 counting only the distinct ones).

The product of its digits is 22861440, while the sum is 63.

The square root of 4891459977 is about 69938.9732338129. The cubic root of 4891459977 is about 1697.5119285877.

The spelling of 4891459977 in words is "four billion, eight hundred ninety-one million, four hundred fifty-nine thousand, nine hundred seventy-seven".