199477787548272 has 20 divisors (see below), whose sum is σ = 515317617833160. Its totient is φ = 66492595849408.

The previous prime is 199477787548271. The next prime is 199477787548313. The reversal of 199477787548272 is 272845787774991.

199477787548272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199477787548271) 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, 2077893620247 + ... + 2077893620342.

It is an arithmetic number, because the mean of its divisors is an integer number (25765880891658).

Almost surely, 2^{199477787548272} is an apocalyptic number.

199477787548272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199477787548272 is an abundant number, since it is smaller than the sum of its proper divisors (315839830284888).

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

199477787548272 is a wasteful number, since it uses less digits than its factorization.

199477787548272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4155787240600 (or 4155787240594 counting only the distinct ones).

The product of its digits is 27880796160, while the sum is 87.

The spelling of 199477787548272 in words is "one hundred ninety-nine trillion, four hundred seventy-seven billion, seven hundred eighty-seven million, five hundred forty-eight thousand, two hundred seventy-two".