4209775988 has 12 divisors (see below), whose sum is σ = 8036845152. Its totient is φ = 1913534520.

The previous prime is 4209775987. The next prime is 4209775991. The reversal of 4209775988 is 8895779024.

It is a super-2 number, since 2×4209775988² = 35444427738282752288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4209775987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47838320 + ... + 47838407.

It is an arithmetic number, because the mean of its divisors is an integer number (669737096).

Almost surely, 2^4209775988 is an apocalyptic number.

It is an amenable number.

4209775988 is a deficient number, since it is larger than the sum of its proper divisors (3827069164).

4209775988 is a wasteful number, since it uses less digits than its factorization.

4209775988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95676742 (or 95676740 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 59.

The square root of 4209775988 is about 64882.7865307895. The cubic root of 4209775988 is about 1614.6794902437.

The spelling of 4209775988 in words is "four billion, two hundred nine million, seven hundred seventy-five thousand, nine hundred eighty-eight".