4249187977 has 2 divisors, whose sum is σ = 4249187978. Its totient is φ = 4249187976.

The previous prime is 4249187963. The next prime is 4249187983. The reversal of 4249187977 is 7797819424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2461251321 + 1787936656 = 49611^2 + 42284^2 .

It is a cyclic number.

It is not a de Polignac number, because 4249187977 - 2⁷ = 4249187849 is a prime.

It is not a weakly prime, because it can be changed into another prime (4249187947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2124593988 + 2124593989.

It is an arithmetic number, because the mean of its divisors is an integer number (2124593989).

Almost surely, 2^4249187977 is an apocalyptic number.

It is an amenable number.

4249187977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4249187977 is an equidigital number, since it uses as much as digits as its factorization.

4249187977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 58.

The square root of 4249187977 is about 65185.7958224029. The cubic root of 4249187977 is about 1619.7027317426.

The spelling of 4249187977 in words is "four billion, two hundred forty-nine million, one hundred eighty-seven thousand, nine hundred seventy-seven".