239201278849 has 4 divisors (see below), whose sum is σ = 257601377236. Its totient is φ = 220801180464.

The previous prime is 239201278819. The next prime is 239201278859. The reversal of 239201278849 is 948872102932.

239201278849 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68818078224 + 170383200625 = 262332^2 + 412775^2 .

It is a cyclic number.

It is not a de Polignac number, because 239201278849 - 2¹⁷ = 239201147777 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 239201278849.

It is not an unprimeable number, because it can be changed into a prime (239201278819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9200049174 + ... + 9200049199.

It is an arithmetic number, because the mean of its divisors is an integer number (64400344309).

Almost surely, 2^239201278849 is an apocalyptic number.

It is an amenable number.

239201278849 is a deficient number, since it is larger than the sum of its proper divisors (18400098387).

239201278849 is a wasteful number, since it uses less digits than its factorization.

239201278849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18400098386.

The product of its (nonzero) digits is 3483648, while the sum is 55.

The spelling of 239201278849 in words is "two hundred thirty-nine billion, two hundred one million, two hundred seventy-eight thousand, eight hundred forty-nine".