199288583540 has 48 divisors (see below), whose sum is σ = 420072315600. Its totient is φ = 79417497600.

The previous prime is 199288583539. The next prime is 199288583587. The reversal of 199288583540 is 45385882991.

It can be written as a sum of positive squares in 8 ways, for example, as 39150953956 + 160137629584 = 197866^2 + 400172^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8371094 + ... + 8394866.

It is an arithmetic number, because the mean of its divisors is an integer number (8751506575).

Almost surely, 2^199288583540 is an apocalyptic number.

199288583540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199288583540 is an abundant number, since it is smaller than the sum of its proper divisors (220783732060).

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

199288583540 is a wasteful number, since it uses less digits than its factorization.

199288583540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25332 (or 25330 counting only the distinct ones).

The product of its (nonzero) digits is 24883200, while the sum is 62.

The spelling of 199288583540 in words is "one hundred ninety-nine billion, two hundred eighty-eight million, five hundred eighty-three thousand, five hundred forty".