461906478594 has 240 divisors, whose sum is σ = 1140218539200. Its totient is φ = 135065620800.

The previous prime is 461906478557. The next prime is 461906478601. The reversal of 461906478594 is 495874609164.

461906478594 is a `hidden beast` number, since 4 + 619 + 0 + 6 + 4 + 7 + 8 + 5 + 9 + 4 = 666.

It is an unprimeable number.

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 119 ways as a sum of consecutive naturals, for example, 948473019 + ... + 948473505.

It is an arithmetic number, because the mean of its divisors is an integer number (4750910580).

Almost surely, 2^461906478594 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461906478594, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (570109269600).

461906478594 is an abundant number, since it is smaller than the sum of its proper divisors (678312060606).

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

461906478594 is a wasteful number, since it uses less digits than its factorization.

461906478594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 659 (or 623 counting only the distinct ones).

The product of its (nonzero) digits is 52254720, while the sum is 63.

The spelling of 461906478594 in words is "four hundred sixty-one billion, nine hundred six million, four hundred seventy-eight thousand, five hundred ninety-four".