461606630400 has 792 divisors, whose sum is σ = 1777120899840. Its totient is φ = 114060165120.

The previous prime is 461606630351. The next prime is 461606630411. The reversal of 461606630400 is 4036606164.

461606630400 is a `hidden beast` number, since 4 + 6 + 1 + 606 + 6 + 3 + 0 + 40 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 262424721 + ... + 262426479.

It is an arithmetic number, because the mean of its divisors is an integer number (2243839520).

Almost surely, 2^461606630400 is an apocalyptic number.

461606630400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 461606630400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888560449920).

461606630400 is an abundant number, since it is smaller than the sum of its proper divisors (1315514269440).

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

461606630400 is a wasteful number, since it uses less digits than its factorization.

461606630400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1879 (or 1853 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 461606630400 in words is "four hundred sixty-one billion, six hundred six million, six hundred thirty thousand, four hundred".