201761954481 has 8 divisors (see below), whose sum is σ = 271627744960. Its totient is φ = 133202066832.

The previous prime is 201761954477. The next prime is 201761954519. The reversal of 201761954481 is 184459167102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201761954481 - 2² = 201761954477 is a prime.

It is a super-2 number, since 2×201761954481² (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 201761954481.

It is not an unprimeable number, because it can be changed into a prime (201761954411) 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 7 ways as a sum of consecutive naturals, for example, 326475346 + ... + 326475963.

It is an arithmetic number, because the mean of its divisors is an integer number (33953468120).

Almost surely, 2^201761954481 is an apocalyptic number.

It is an amenable number.

201761954481 is a deficient number, since it is larger than the sum of its proper divisors (69865790479).

201761954481 is a wasteful number, since it uses less digits than its factorization.

201761954481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652951415.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 201761954481 in words is "two hundred one billion, seven hundred sixty-one million, nine hundred fifty-four thousand, four hundred eighty-one".