488618345647 has 4 divisors (see below), whose sum is σ = 489263813176. Its totient is φ = 487972878120.

The previous prime is 488618345623. The next prime is 488618345653. The reversal of 488618345647 is 746543816884.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 488618345647 - 2⁷ = 488618345519 is a prime.

It is a super-2 number, since 2×488618345647² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488618346647) 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, 322732629 + ... + 322734142.

It is an arithmetic number, because the mean of its divisors is an integer number (122315953294).

Almost surely, 2^488618345647 is an apocalyptic number.

488618345647 is a deficient number, since it is larger than the sum of its proper divisors (645467529).

488618345647 is an equidigital number, since it uses as much as digits as its factorization.

488618345647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645467528.

The product of its digits is 123863040, while the sum is 64.

The spelling of 488618345647 in words is "four hundred eighty-eight billion, six hundred eighteen million, three hundred forty-five thousand, six hundred forty-seven".