471115017820 has 24 divisors (see below), whose sum is σ = 989470296864. Its totient is φ = 188421481536.

The previous prime is 471115017817. The next prime is 471115017907. The reversal of 471115017820 is 28710511174.

It is a self number, because there is not a number n which added to its sum of digits gives 471115017820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1374939 + ... + 1683058.

It is an arithmetic number, because the mean of its divisors is an integer number (41227929036).

Almost surely, 2^471115017820 is an apocalyptic number.

It is an amenable number.

471115017820 is an abundant number, since it is smaller than the sum of its proper divisors (518355279044).

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

471115017820 is a wasteful number, since it uses less digits than its factorization.

471115017820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065709 (or 3065707 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 37.

Adding to 471115017820 its reverse (28710511174), we get a palindrome (499825528994).

The spelling of 471115017820 in words is "four hundred seventy-one billion, one hundred fifteen million, seventeen thousand, eight hundred twenty".