201279048319 has 4 divisors (see below), whose sum is σ = 201347119944. Its totient is φ = 201210976696.

The previous prime is 201279048317. The next prime is 201279048359. The reversal of 201279048319 is 913840972102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 201279048319 - 2¹ = 201279048317 is a prime.

It is a super-2 number, since 2×201279048319² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201279048317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34031377 + ... + 34037290.

It is an arithmetic number, because the mean of its divisors is an integer number (50336779986).

Almost surely, 2^201279048319 is an apocalyptic number.

201279048319 is a deficient number, since it is larger than the sum of its proper divisors (68071625).

201279048319 is an equidigital number, since it uses as much as digits as its factorization.

201279048319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68071624.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 201279048319 in words is "two hundred one billion, two hundred seventy-nine million, forty-eight thousand, three hundred nineteen".