488839790977 has 4 divisors (see below), whose sum is σ = 489475474180. Its totient is φ = 488204107776.

The previous prime is 488839790953. The next prime is 488839790983. The reversal of 488839790977 is 779097938884.

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 254342696976 + 234497094001 = 504324^2 + 484249^2 .

It is a cyclic number.

It is not a de Polignac number, because 488839790977 - 2¹¹ = 488839788929 is a prime.

It is a super-2 number, since 2×488839790977² (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 = 488839790897 and 488839790906.

It is not an unprimeable number, because it can be changed into a prime (488839790927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 317840448 + ... + 317841985.

It is an arithmetic number, because the mean of its divisors is an integer number (122368868545).

Almost surely, 2^488839790977 is an apocalyptic number.

It is an amenable number.

488839790977 is a deficient number, since it is larger than the sum of its proper divisors (635683203).

488839790977 is an equidigital number, since it uses as much as digits as its factorization.

488839790977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635683202.

The product of its (nonzero) digits is 1536288768, while the sum is 79.

The spelling of 488839790977 in words is "four hundred eighty-eight billion, eight hundred thirty-nine million, seven hundred ninety thousand, nine hundred seventy-seven".