257302063128 has 32 divisors (see below), whose sum is σ = 701732900160. Its totient is φ = 77970322080.

The previous prime is 257302063121. The next prime is 257302063141. The reversal of 257302063128 is 821360203752.

257302063128 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (257302063121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487314250 + ... + 487314777.

It is an arithmetic number, because the mean of its divisors is an integer number (21929153130).

Almost surely, 2^257302063128 is an apocalyptic number.

It is an amenable number.

257302063128 is an abundant number, since it is smaller than the sum of its proper divisors (444430837032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257302063128 is a wasteful number, since it uses less digits than its factorization.

257302063128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974629047 (or 974629043 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 39.

The spelling of 257302063128 in words is "two hundred fifty-seven billion, three hundred two million, sixty-three thousand, one hundred twenty-eight".