471861191492136 has 576 divisors, whose sum is σ = 1383681258086400. Its totient is φ = 145213541351424.

The previous prime is 471861191492099. The next prime is 471861191492167. The reversal of 471861191492136 is 631294191168174.

It is a happy number.

471861191492136 is a `hidden beast` number, since 4 + 7 + 1 + 8 + 6 + 1 + 1 + 9 + 1 + 492 + 136 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 175608927385 + ... + 175608930071.

It is an arithmetic number, because the mean of its divisors is an integer number (2402224406400).

Almost surely, 2^{471861191492136} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 471861191492136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (691840629043200).

471861191492136 is an abundant number, since it is smaller than the sum of its proper divisors (911820066594264).

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

471861191492136 is a wasteful number, since it uses less digits than its factorization.

471861191492136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3466 (or 3442 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 63.

The spelling of 471861191492136 in words is "four hundred seventy-one trillion, eight hundred sixty-one billion, one hundred ninety-one million, four hundred ninety-two thousand, one hundred thirty-six".