488405252752821 has 12 divisors (see below), whose sum is σ = 705482746868172. Its totient is φ = 325599582038976.

The previous prime is 488405252752799. The next prime is 488405252752831. The reversal of 488405252752821 is 128257252504884.

It is a happy number.

488405252752821 is a `hidden beast` number, since 4 + 8 + 8 + 4 + 0 + 52 + 52 + 7 + 528 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 304517821292721 + 183887431460100 = 17450439^2 + 13560510^2 .

It is not a de Polignac number, because 488405252752821 - 2⁶ = 488405252752757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488405252752831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 325860456 + ... + 327355841.

It is an arithmetic number, because the mean of its divisors is an integer number (58790228905681).

Almost surely, 2^{488405252752821} is an apocalyptic number.

It is an amenable number.

488405252752821 is a deficient number, since it is larger than the sum of its proper divisors (217077494115351).

488405252752821 is a wasteful number, since it uses less digits than its factorization.

488405252752821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653299380 (or 653299377 counting only the distinct ones).

The product of its (nonzero) digits is 114688000, while the sum is 63.

The spelling of 488405252752821 in words is "four hundred eighty-eight trillion, four hundred five billion, two hundred fifty-two million, seven hundred fifty-two thousand, eight hundred twenty-one".