461392789081 has 27 divisors (see below), whose sum is σ = 561205589301. Its totient is φ = 378195108984.

The previous prime is 461392789073. The next prime is 461392789139. The reversal of 461392789081 is 180987293164.

The square root of 461392789081 is 679259.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 461392789081 - 2³ = 461392789073 is a prime.

It is a super-3 number, since 3×461392789081³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (461392789021) 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 26 ways as a sum of consecutive naturals, for example, 109358590 + ... + 109362808.

Almost surely, 2^461392789081 is an apocalyptic number.

461392789081 is the 679259-th square number.

461392789081 is the 339630-th centered octagonal number.

It is an amenable number.

461392789081 is a deficient number, since it is larger than the sum of its proper divisors (99812800220).

461392789081 is an frugal number, since it uses more digits than its factorization.

461392789081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8498 (or 4249 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 58.

The spelling of 461392789081 in words is "four hundred sixty-one billion, three hundred ninety-two million, seven hundred eighty-nine thousand, eighty-one".