488764220645 has 4 divisors (see below), whose sum is σ = 586517064780. Its totient is φ = 391011376512.

The previous prime is 488764220599. The next prime is 488764220689. The reversal of 488764220645 is 546022467884.

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

It can be written as a sum of positive squares in 2 ways, for example, as 253211246401 + 235552974244 = 503201^2 + 485338^2 .

It is a cyclic number.

It is not a de Polignac number, because 488764220645 - 2³⁸ = 213886313701 is a prime.

It is a super-3 number, since 3×488764220645³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48876422060 + ... + 48876422069.

It is an arithmetic number, because the mean of its divisors is an integer number (146629266195).

Almost surely, 2^488764220645 is an apocalyptic number.

It is an amenable number.

488764220645 is a deficient number, since it is larger than the sum of its proper divisors (97752844135).

488764220645 is an equidigital number, since it uses as much as digits as its factorization.

488764220645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97752844134.

The product of its (nonzero) digits is 20643840, while the sum is 56.

The spelling of 488764220645 in words is "four hundred eighty-eight billion, seven hundred sixty-four million, two hundred twenty thousand, six hundred forty-five".