199279382472 has 96 divisors (see below), whose sum is σ = 586908012600. Its totient is φ = 60829304832.

The previous prime is 199279382459. The next prime is 199279382473. The reversal of 199279382472 is 274283972991.

199279382472 is a `hidden beast` number, since 1 + 9 + 92 + 79 + 3 + 8 + 2 + 472 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 197663824836 + 1615557636 = 444594^2 + 40194^2 .

It is not an unprimeable number, because it can be changed into a prime (199279382473) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2154847 + ... + 2245422.

Almost surely, 2^199279382472 is an apocalyptic number.

199279382472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

199279382472 is an abundant number, since it is smaller than the sum of its proper divisors (387628630128).

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

199279382472 is a wasteful number, since it uses less digits than its factorization.

199279382472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4400335 (or 4400328 counting only the distinct ones).

The product of its digits is 27433728, while the sum is 63.

The spelling of 199279382472 in words is "one hundred ninety-nine billion, two hundred seventy-nine million, three hundred eighty-two thousand, four hundred seventy-two".