478304782657 has 32 divisors (see below), whose sum is σ = 531996917760. Its totient is φ = 427312791360.

The previous prime is 478304782603. The next prime is 478304782661. The reversal of 478304782657 is 756287403874.

It is not a de Polignac number, because 478304782657 - 2²³ = 478296394049 is a prime.

It is a super-2 number, since 2×478304782657² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 478304782595 and 478304782604.

It is not an unprimeable number, because it can be changed into a prime (478304782687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12741838 + ... + 12779320.

It is an arithmetic number, because the mean of its divisors is an integer number (16624903680).

Almost surely, 2^478304782657 is an apocalyptic number.

It is an amenable number.

478304782657 is a deficient number, since it is larger than the sum of its proper divisors (53692135103).

478304782657 is a wasteful number, since it uses less digits than its factorization.

478304782657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37813.

The product of its (nonzero) digits is 63221760, while the sum is 61.

The spelling of 478304782657 in words is "four hundred seventy-eight billion, three hundred four million, seven hundred eighty-two thousand, six hundred fifty-seven".