474144339864 has 384 divisors, whose sum is σ = 1385675907840. Its totient is φ = 134331208704.

The previous prime is 474144339863. The next prime is 474144339869. The reversal of 474144339864 is 468933441474.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (474144339863) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 626346174 + ... + 626346930.

It is an arithmetic number, because the mean of its divisors is an integer number (3608531010).

Almost surely, 2^474144339864 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 474144339864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (692837953920).

474144339864 is an abundant number, since it is smaller than the sum of its proper divisors (911531567976).

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

474144339864 is a wasteful number, since it uses less digits than its factorization.

474144339864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 944 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 57.

The spelling of 474144339864 in words is "four hundred seventy-four billion, one hundred forty-four million, three hundred thirty-nine thousand, eight hundred sixty-four".