199976741908 has 24 divisors (see below), whose sum is σ = 350787180744. Its totient is φ = 99751920000.

The previous prime is 199976741857. The next prime is 199976741929. The reversal of 199976741908 is 809147679991.

199976741908 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1784386564 + 198192355344 = 42242^2 + 445188^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15669466 + ... + 15682222.

It is an arithmetic number, because the mean of its divisors is an integer number (14616132531).

Almost surely, 2^199976741908 is an apocalyptic number.

It is an amenable number.

199976741908 is a deficient number, since it is larger than the sum of its proper divisors (150810438836).

199976741908 is a wasteful number, since it uses less digits than its factorization.

199976741908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21723 (or 21721 counting only the distinct ones).

The product of its (nonzero) digits is 61725888, while the sum is 70.

The spelling of 199976741908 in words is "one hundred ninety-nine billion, nine hundred seventy-six million, seven hundred forty-one thousand, nine hundred eight".