4085681098 has 4 divisors (see below), whose sum is σ = 6128521650. Its totient is φ = 2042840548.

The previous prime is 4085681087. The next prime is 4085681101. The reversal of 4085681098 is 8901865804.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3571616169 + 514064929 = 59763^2 + 22673^2 .

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 as a sum of consecutive naturals, namely, 1021420273 + ... + 1021420276.

Almost surely, 2^4085681098 is an apocalyptic number.

4085681098 is a deficient number, since it is larger than the sum of its proper divisors (2042840552).

4085681098 is a wasteful number, since it uses less digits than its factorization.

4085681098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042840551.

The product of its (nonzero) digits is 552960, while the sum is 49.

The square root of 4085681098 is about 63919.3327405723. The cubic root of 4085681098 is about 1598.6552630870.

The spelling of 4085681098 in words is "four billion, eighty-five million, six hundred eighty-one thousand, ninety-eight".