461035981181 has 4 divisors (see below), whose sum is σ = 462665083872. Its totient is φ = 459406878492.

The previous prime is 461035981171. The next prime is 461035981213. The reversal of 461035981181 is 181189530164.

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-461035981181 is a prime.

It is a super-2 number, since 2×461035981181² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461035981121) 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, 814550921 + ... + 814551486.

It is an arithmetic number, because the mean of its divisors is an integer number (115666270968).

Almost surely, 2^461035981181 is an apocalyptic number.

It is an amenable number.

461035981181 is a deficient number, since it is larger than the sum of its proper divisors (1629102691).

461035981181 is a wasteful number, since it uses less digits than its factorization.

461035981181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1629102690.

The product of its (nonzero) digits is 207360, while the sum is 47.

The spelling of 461035981181 in words is "four hundred sixty-one billion, thirty-five million, nine hundred eighty-one thousand, one hundred eighty-one".