199528447472 has 20 divisors (see below), whose sum is σ = 386700475776. Its totient is φ = 99734776320.

The previous prime is 199528447463. The next prime is 199528447501. The reversal of 199528447472 is 274744825991.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1784513 + ... + 1893024.

Almost surely, 2^199528447472 is an apocalyptic number.

It is an amenable number.

199528447472 is a deficient number, since it is larger than the sum of its proper divisors (187172028304).

199528447472 is a wasteful number, since it uses less digits than its factorization.

199528447472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680936 (or 3680930 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 62.

The spelling of 199528447472 in words is "one hundred ninety-nine billion, five hundred twenty-eight million, four hundred forty-seven thousand, four hundred seventy-two".