201807613481 has 8 divisors (see below), whose sum is σ = 202988800200. Its totient is φ = 200626595712.

The previous prime is 201807613453. The next prime is 201807613489. The reversal of 201807613481 is 184316708102.

It can be written as a sum of positive squares in 4 ways, for example, as 188838048025 + 12969565456 = 434555^2 + 113884^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 201807613481 - 2⁶ = 201807613417 is a prime.

It is a super-2 number, since 2×201807613481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201807613489) 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, 2985251 + ... + 3052103.

It is an arithmetic number, because the mean of its divisors is an integer number (25373600025).

Almost surely, 2^201807613481 is an apocalyptic number.

It is an amenable number.

201807613481 is a deficient number, since it is larger than the sum of its proper divisors (1181186719).

201807613481 is a wasteful number, since it uses less digits than its factorization.

201807613481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84475.

The product of its (nonzero) digits is 64512, while the sum is 41.

The spelling of 201807613481 in words is "two hundred one billion, eight hundred seven million, six hundred thirteen thousand, four hundred eighty-one".