461897889129 has 16 divisors (see below), whose sum is σ = 684704716800. Its totient is φ = 307746729648.

The previous prime is 461897889113. The next prime is 461897889163. The reversal of 461897889129 is 921988798164.

461897889129 is a `hidden beast` number, since 461 + 8 + 9 + 78 + 8 + 91 + 2 + 9 = 666.

It is not a de Polignac number, because 461897889129 - 2⁴ = 461897889113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (461897889029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5098614 + ... + 5188415.

It is an arithmetic number, because the mean of its divisors is an integer number (42794044800).

Almost surely, 2^461897889129 is an apocalyptic number.

It is an amenable number.

461897889129 is a deficient number, since it is larger than the sum of its proper divisors (222806827671).

461897889129 is a wasteful number, since it uses less digits than its factorization.

461897889129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10288701 (or 10288695 counting only the distinct ones).

The product of its digits is 125411328, while the sum is 72.

The spelling of 461897889129 in words is "four hundred sixty-one billion, eight hundred ninety-seven million, eight hundred eighty-nine thousand, one hundred twenty-nine".