461143621221636 has 24 divisors (see below), whose sum is σ = 1077664845902400. Its totient is φ = 153476959971232.

The previous prime is 461143621221629. The next prime is 461143621221641. The reversal of 461143621221636 is 636122126341164.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29697546411 + ... + 29697561938.

It is an arithmetic number, because the mean of its divisors is an integer number (44902701912600).

Almost surely, 2^{461143621221636} is an apocalyptic number.

It is an amenable number.

461143621221636 is an abundant number, since it is smaller than the sum of its proper divisors (616521224680764).

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

461143621221636 is a wasteful number, since it uses less digits than its factorization.

461143621221636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59395109003 (or 59395109001 counting only the distinct ones).

The product of its digits is 1492992, while the sum is 48.

The spelling of 461143621221636 in words is "four hundred sixty-one trillion, one hundred forty-three billion, six hundred twenty-one million, two hundred twenty-one thousand, six hundred thirty-six".