461812805980 has 12 divisors (see below), whose sum is σ = 969806892600. Its totient is φ = 184725122384.

The previous prime is 461812805977. The next prime is 461812805981. The reversal of 461812805980 is 89508218164.

It is a happy number.

It is a super-2 number, since 2×461812805980² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (461812805981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11545320130 + ... + 11545320169.

It is an arithmetic number, because the mean of its divisors is an integer number (80817241050).

Almost surely, 2^461812805980 is an apocalyptic number.

It is an amenable number.

461812805980 is an abundant number, since it is smaller than the sum of its proper divisors (507994086620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

461812805980 is a wasteful number, since it uses less digits than its factorization.

461812805980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23090640308 (or 23090640306 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 52.

The spelling of 461812805980 in words is "four hundred sixty-one billion, eight hundred twelve million, eight hundred five thousand, nine hundred eighty".