3820117899 has 16 divisors (see below), whose sum is σ = 5578272000. Its totient is φ = 2310995616.

The previous prime is 3820117883. The next prime is 3820117907. The reversal of 3820117899 is 9987110283.

It is not a de Polignac number, because 3820117899 - 2⁴ = 3820117883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3820117859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 827799 + ... + 832400.

It is an arithmetic number, because the mean of its divisors is an integer number (348642000).

Almost surely, 2^3820117899 is an apocalyptic number.

3820117899 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

3820117899 is a deficient number, since it is larger than the sum of its proper divisors (1758154101).

3820117899 is a wasteful number, since it uses less digits than its factorization.

3820117899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660274.

The product of its (nonzero) digits is 217728, while the sum is 48.

The square root of 3820117899 is about 61807.1023346023. The cubic root of 3820117899 is about 1563.2397468639.

The spelling of 3820117899 in words is "three billion, eight hundred twenty million, one hundred seventeen thousand, eight hundred ninety-nine".