478357589956 has 9 divisors (see below), whose sum is σ = 837128203149. Its totient is φ = 239178103344.

The previous prime is 478357589939. The next prime is 478357589977. The reversal of 478357589956 is 659985753874.

The square root of 478357589956 is 691634.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 452377308100 + 25980281856 = 672590^2 + 161184^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1210360 + ... + 1556176.

Almost surely, 2^478357589956 is an apocalyptic number.

478357589956 is the 691634-th square number.

It is an amenable number.

478357589956 is a deficient number, since it is larger than the sum of its proper divisors (358770613193).

478357589956 is an frugal number, since it uses more digits than its factorization.

478357589956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691638 (or 345819 counting only the distinct ones).

The product of its digits is 2286144000, while the sum is 76.

The spelling of 478357589956 in words is "four hundred seventy-eight billion, three hundred fifty-seven million, five hundred eighty-nine thousand, nine hundred fifty-six".