461781239329134 has 64 divisors (see below), whose sum is σ = 1027610118043200. Its totient is φ = 153712653975936.

The previous prime is 461781239329099. The next prime is 461781239329159. The reversal of 461781239329134 is 431923932187164.

461781239329134 is a `hidden beast` number, since 4 + 6 + 1 + 7 + 81 + 239 + 3 + 291 + 34 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1555147072 + ... + 1555443980.

It is an arithmetic number, because the mean of its divisors is an integer number (16056408094425).

Almost surely, 2^{461781239329134} is an apocalyptic number.

461781239329134 is an abundant number, since it is smaller than the sum of its proper divisors (565828878714066).

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

461781239329134 is a wasteful number, since it uses less digits than its factorization.

461781239329134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336946 (or 336940 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The spelling of 461781239329134 in words is "four hundred sixty-one trillion, seven hundred eighty-one billion, two hundred thirty-nine million, three hundred twenty-nine thousand, one hundred thirty-four".