478621620375 has 16 divisors (see below), whose sum is σ = 796426376928. Its totient is φ = 255264864000.

The previous prime is 478621620329. The next prime is 478621620377. The reversal of 478621620375 is 573026126874.

It is a happy number.

It is not a de Polignac number, because 478621620375 - 2⁶ = 478621620311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478621620377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 638161786 + ... + 638162535.

It is an arithmetic number, because the mean of its divisors is an integer number (49776648558).

Almost surely, 2^478621620375 is an apocalyptic number.

478621620375 is a deficient number, since it is larger than the sum of its proper divisors (317804756553).

478621620375 is a wasteful number, since it uses less digits than its factorization.

478621620375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276324339 (or 1276324329 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 478621620375 in words is "four hundred seventy-eight billion, six hundred twenty-one million, six hundred twenty thousand, three hundred seventy-five".