478695657444 has 24 divisors (see below), whose sum is σ = 1125482923488. Its totient is φ = 158347163520.

The previous prime is 478695657439. The next prime is 478695657463. The reversal of 478695657444 is 444756596874.

It is a super-2 number, since 2×478695657444² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

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, 152255317 + ... + 152258460.

It is an arithmetic number, because the mean of its divisors is an integer number (46895121812).

Almost surely, 2^478695657444 is an apocalyptic number.

It is an amenable number.

478695657444 is an abundant number, since it is smaller than the sum of its proper divisors (646787266044).

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

478695657444 is a wasteful number, since it uses less digits than its factorization.

478695657444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304513915 (or 304513913 counting only the distinct ones).

The product of its digits is 812851200, while the sum is 69.

The spelling of 478695657444 in words is "four hundred seventy-eight billion, six hundred ninety-five million, six hundred fifty-seven thousand, four hundred forty-four".