478357482657 has 4 divisors (see below), whose sum is σ = 637809976880. Its totient is φ = 318904988436.

The previous prime is 478357482619. The next prime is 478357482763. The reversal of 478357482657 is 756284753874.

478357482657 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 478357482657 - 2¹² = 478357478561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (478357482257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 79726247107 + ... + 79726247112.

It is an arithmetic number, because the mean of its divisors is an integer number (159452494220).

Almost surely, 2^478357482657 is an apocalyptic number.

It is an amenable number.

478357482657 is a deficient number, since it is larger than the sum of its proper divisors (159452494223).

478357482657 is a wasteful number, since it uses less digits than its factorization.

478357482657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159452494222.

The product of its digits is 316108800, while the sum is 66.

The spelling of 478357482657 in words is "four hundred seventy-eight billion, three hundred fifty-seven million, four hundred eighty-two thousand, six hundred fifty-seven".