4977528191 has 4 divisors (see below), whose sum is σ = 5001118584. Its totient is φ = 4953937800.

The previous prime is 4977528169. The next prime is 4977528239. The reversal of 4977528191 is 1918257794.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4977528191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4977528151) 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 3 ways as a sum of consecutive naturals, for example, 11794880 + ... + 11795301.

It is an arithmetic number, because the mean of its divisors is an integer number (1250279646).

Almost surely, 2^4977528191 is an apocalyptic number.

4977528191 is a deficient number, since it is larger than the sum of its proper divisors (23590393).

4977528191 is a wasteful number, since it uses less digits than its factorization.

4977528191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23590392.

The product of its digits is 1270080, while the sum is 53.

The square root of 4977528191 is about 70551.5994928535. The cubic root of 4977528191 is about 1707.4103490634.

The spelling of 4977528191 in words is "four billion, nine hundred seventy-seven million, five hundred twenty-eight thousand, one hundred ninety-one".