479021538688 has 128 divisors (see below), whose sum is σ = 1191714796800. Its totient is φ = 186327889920.

The previous prime is 479021538679. The next prime is 479021538719. The reversal of 479021538688 is 886835120974.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×479021538688² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6061606 + ... + 6140122.

It is an arithmetic number, because the mean of its divisors is an integer number (9310271850).

It is a 1-persistent number, because it is pandigital, but 2⋅479021538688 = 958043077376 is not.

Almost surely, 2^479021538688 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 479021538688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (595857398400).

479021538688 is an abundant number, since it is smaller than the sum of its proper divisors (712693258112).

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

479021538688 is a wasteful number, since it uses less digits than its factorization.

479021538688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79168 (or 79156 counting only the distinct ones).

The product of its (nonzero) digits is 23224320, while the sum is 61.

The spelling of 479021538688 in words is "four hundred seventy-nine billion, twenty-one million, five hundred thirty-eight thousand, six hundred eighty-eight".