4077944985 has 16 divisors (see below), whose sum is σ = 6525529920. Its totient is φ = 2174631360.

The previous prime is 4077944957. The next prime is 4077944987. The reversal of 4077944985 is 5894497704.

It is a happy number.

It is not a de Polignac number, because 4077944985 - 2⁸ = 4077944729 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4077944987) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180415 + ... + 201755.

It is an arithmetic number, because the mean of its divisors is an integer number (407845620).

Almost surely, 2^4077944985 is an apocalyptic number.

It is an amenable number.

4077944985 is a deficient number, since it is larger than the sum of its proper divisors (2447584935).

4077944985 is a wasteful number, since it uses less digits than its factorization.

4077944985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34088.

The product of its (nonzero) digits is 10160640, while the sum is 57.

The square root of 4077944985 is about 63858.7894106990. The cubic root of 4077944985 is about 1597.6456238584.

The spelling of 4077944985 in words is "four billion, seventy-seven million, nine hundred forty-four thousand, nine hundred eighty-five".