199546940826 has 32 divisors (see below), whose sum is σ = 458728603200. Its totient is φ = 64222003440.

The previous prime is 199546940819. The next prime is 199546940839. The reversal of 199546940826 is 628049645991.

199546940826 is a `hidden beast` number, since 1 + 9 + 9 + 546 + 9 + 4 + 0 + 82 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63710740 + ... + 63713871.

It is an arithmetic number, because the mean of its divisors is an integer number (14335268850).

Almost surely, 2^199546940826 is an apocalyptic number.

199546940826 is an abundant number, since it is smaller than the sum of its proper divisors (259181662374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

199546940826 is a wasteful number, since it uses less digits than its factorization.

199546940826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127424651 (or 127424645 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 199546940826 in words is "one hundred ninety-nine billion, five hundred forty-six million, nine hundred forty thousand, eight hundred twenty-six".