471817448487 has 192 divisors, whose sum is σ = 874277913600. Its totient is φ = 238139688960.

The previous prime is 471817448467. The next prime is 471817448489. The reversal of 471817448487 is 784844718174.

471817448487 is a `hidden beast` number, since 4 + 7 + 1 + 8 + 1 + 74 + 484 + 87 = 666.

It is not a de Polignac number, because 471817448487 - 2²³ = 471809059879 is a prime.

It is a super-2 number, since 2×471817448487² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471817448489) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1610298313 + ... + 1610298605.

It is an arithmetic number, because the mean of its divisors is an integer number (4553530800).

Almost surely, 2^471817448487 is an apocalyptic number.

471817448487 is a deficient number, since it is larger than the sum of its proper divisors (402460465113).

471817448487 is a wasteful number, since it uses less digits than its factorization.

471817448487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 758 (or 755 counting only the distinct ones).

The product of its digits is 44957696, while the sum is 63.

The spelling of 471817448487 in words is "four hundred seventy-one billion, eight hundred seventeen million, four hundred forty-eight thousand, four hundred eighty-seven".