201584342969 has 4 divisors (see below), whose sum is σ = 201763849296. Its totient is φ = 201404836644.

The previous prime is 201584342933. The next prime is 201584342977. The reversal of 201584342969 is 969243485102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201584342969 is a prime.

It is a super-2 number, since 2×201584342969² (a number of 23 digits) contains 22 as substring.

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 201584342969.

It is not an unprimeable number, because it can be changed into a prime (201584345969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89751479 + ... + 89753724.

It is an arithmetic number, because the mean of its divisors is an integer number (50440962324).

Almost surely, 2^201584342969 is an apocalyptic number.

It is an amenable number.

201584342969 is a deficient number, since it is larger than the sum of its proper divisors (179506327).

201584342969 is a wasteful number, since it uses less digits than its factorization.

201584342969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179506326.

The product of its (nonzero) digits is 3732480, while the sum is 53.

The spelling of 201584342969 in words is "two hundred one billion, five hundred eighty-four million, three hundred forty-two thousand, nine hundred sixty-nine".