4477777745 has 16 divisors (see below), whose sum is σ = 6143374848. Its totient is φ = 3069264960.

The previous prime is 4477777691. The next prime is 4477777751. The reversal of 4477777745 is 5477777744.

It is a happy number.

It is not a de Polignac number, because 4477777745 - 2²² = 4473583441 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69800 + ... + 117590.

It is an arithmetic number, because the mean of its divisors is an integer number (383960928).

Almost surely, 2^4477777745 is an apocalyptic number.

It is an amenable number.

4477777745 is a deficient number, since it is larger than the sum of its proper divisors (1665597103).

4477777745 is a wasteful number, since it uses less digits than its factorization.

4477777745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50480.

The product of its digits is 37647680, while the sum is 59.

The square root of 4477777745 is about 66916.1994213658. The cubic root of 4477777745 is about 1648.2414990421.

Subtracting 4477777745 from its reverse (5477777744), we obtain a palindrome (999999999).

The spelling of 4477777745 in words is "four billion, four hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred forty-five".