199441429539 has 32 divisors (see below), whose sum is σ = 294968991744. Its totient is φ = 118860295680.

The previous prime is 199441429529. The next prime is 199441429553. The reversal of 199441429539 is 935924144991.

It is not a de Polignac number, because 199441429539 - 2²⁷ = 199307211811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (199441429529) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 263017 + ... + 684149.

It is an arithmetic number, because the mean of its divisors is an integer number (9217780992).

Almost surely, 2^199441429539 is an apocalyptic number.

199441429539 is a deficient number, since it is larger than the sum of its proper divisors (95527562205).

199441429539 is a wasteful number, since it uses less digits than its factorization.

199441429539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421387.

The product of its digits is 12597120, while the sum is 60.

The spelling of 199441429539 in words is "one hundred ninety-nine billion, four hundred forty-one million, four hundred twenty-nine thousand, five hundred thirty-nine".