488820310021 has 4 divisors (see below), whose sum is σ = 489267539212. Its totient is φ = 488373080832.

The previous prime is 488820309997. The next prime is 488820310031. The reversal of 488820310021 is 120013028884.

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 386523324100 + 102296985921 = 621710^2 + 319839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-488820310021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488820310031) 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, 223612956 + ... + 223615141.

It is an arithmetic number, because the mean of its divisors is an integer number (122316884803).

Almost surely, 2^488820310021 is an apocalyptic number.

It is an amenable number.

488820310021 is a deficient number, since it is larger than the sum of its proper divisors (447229191).

488820310021 is a wasteful number, since it uses less digits than its factorization.

488820310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447229190.

The product of its (nonzero) digits is 24576, while the sum is 37.

The spelling of 488820310021 in words is "four hundred eighty-eight billion, eight hundred twenty million, three hundred ten thousand, twenty-one".