4509449977 has 2 divisors, whose sum is σ = 4509449978. Its totient is φ = 4509449976.

The previous prime is 4509449963. The next prime is 4509450019. The reversal of 4509449977 is 7799449054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3583099881 + 926350096 = 59859^2 + 30436^2 .

It is a cyclic number.

It is not a de Polignac number, because 4509449977 - 2¹⁹ = 4508925689 is a prime.

It is not a weakly prime, because it can be changed into another prime (4500449977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2254724988 + 2254724989.

It is an arithmetic number, because the mean of its divisors is an integer number (2254724989).

Almost surely, 2^4509449977 is an apocalyptic number.

It is an amenable number.

4509449977 is a deficient number, since it is larger than the sum of its proper divisors (1).

4509449977 is an equidigital number, since it uses as much as digits as its factorization.

4509449977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The square root of 4509449977 is about 67152.4383548356. The cubic root of 4509449977 is about 1652.1184881459.

The spelling of 4509449977 in words is "four billion, five hundred nine million, four hundred forty-nine thousand, nine hundred seventy-seven".