199858630992 has 40 divisors (see below), whose sum is σ = 517163476800. Its totient is φ = 66508316160.

The previous prime is 199858630991. The next prime is 199858631153. The reversal of 199858630992 is 299036858991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199858630991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3446809 + ... + 3504312.

It is an arithmetic number, because the mean of its divisors is an integer number (12929086920).

Almost surely, 2^199858630992 is an apocalyptic number.

199858630992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199858630992 is an abundant number, since it is smaller than the sum of its proper divisors (317304845808).

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

199858630992 is a wasteful number, since it uses less digits than its factorization.

199858630992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6951731 (or 6951725 counting only the distinct ones).

The product of its (nonzero) digits is 75582720, while the sum is 69.

The spelling of 199858630992 in words is "one hundred ninety-nine billion, eight hundred fifty-eight million, six hundred thirty thousand, nine hundred ninety-two".