471143507818 has 16 divisors (see below), whose sum is σ = 717301547424. Its totient is φ = 232043367600.

The previous prime is 471143507777. The next prime is 471143507819. The reversal of 471143507818 is 818705341174.

It is a super-2 number, since 2×471143507818² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (471143507819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2744221 + ... + 2910847.

It is an arithmetic number, because the mean of its divisors is an integer number (44831346714).

Almost surely, 2^471143507818 is an apocalyptic number.

471143507818 is a deficient number, since it is larger than the sum of its proper divisors (246158039606).

471143507818 is a wasteful number, since it uses less digits than its factorization.

471143507818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187797.

The product of its (nonzero) digits is 752640, while the sum is 49.

The spelling of 471143507818 in words is "four hundred seventy-one billion, one hundred forty-three million, five hundred seven thousand, eight hundred eighteen".