199972764280 has 16 divisors (see below), whose sum is σ = 449938719720. Its totient is φ = 79989105696.

The previous prime is 199972764217. The next prime is 199972764283. The reversal of 199972764280 is 82467279991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199972764283) 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, 2499659514 + ... + 2499659593.

Almost surely, 2^199972764280 is an apocalyptic number.

199972764280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199972764280 is an abundant number, since it is smaller than the sum of its proper divisors (249965955440).

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

199972764280 is a wasteful number, since it uses less digits than its factorization.

199972764280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4999319118 (or 4999319114 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 64.

The spelling of 199972764280 in words is "one hundred ninety-nine billion, nine hundred seventy-two million, seven hundred sixty-four thousand, two hundred eighty".