3772981999 has 2 divisors, whose sum is σ = 3772982000. Its totient is φ = 3772981998.

The previous prime is 3772981997. The next prime is 3772982033. The reversal of 3772981999 is 9991892773.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3772981999 - 2¹ = 3772981997 is a prime.

Together with 3772981997, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3772981999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3772981997) by changing a digit.

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, 1886490999 + 1886491000.

It is an arithmetic number, because the mean of its divisors is an integer number (1886491000).

Almost surely, 2^3772981999 is an apocalyptic number.

3772981999 is a deficient number, since it is larger than the sum of its proper divisors (1).

3772981999 is an equidigital number, since it uses as much as digits as its factorization.

3772981999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15431472, while the sum is 64.

The square root of 3772981999 is about 61424.6041826889. The cubic root of 3772981999 is about 1556.7835875835.

The spelling of 3772981999 in words is "three billion, seven hundred seventy-two million, nine hundred eighty-one thousand, nine hundred ninety-nine".