199044401772 has 12 divisors (see below), whose sum is σ = 464436937496. Its totient is φ = 66348133920.

The previous prime is 199044401771. The next prime is 199044401783. The reversal of 199044401772 is 277104440991.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (199044401771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8293516729 + ... + 8293516752.

Almost surely, 2^199044401772 is an apocalyptic number.

199044401772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199044401772 is an abundant number, since it is smaller than the sum of its proper divisors (265392535724).

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

199044401772 is a wasteful number, since it uses less digits than its factorization.

199044401772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16587033488 (or 16587033486 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 48.

The spelling of 199044401772 in words is "one hundred ninety-nine billion, forty-four million, four hundred one thousand, seven hundred seventy-two".