257764410568 has 32 divisors (see below), whose sum is σ = 565197716160. Its totient is φ = 107901380160.

The previous prime is 257764410557. The next prime is 257764410569. The reversal of 257764410568 is 865014467752.

It is not an unprimeable number, because it can be changed into a prime (257764410569) 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 7 ways as a sum of consecutive naturals, for example, 53520103 + ... + 53524918.

It is an arithmetic number, because the mean of its divisors is an integer number (17662428630).

Almost surely, 2^257764410568 is an apocalyptic number.

257764410568 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

257764410568 is an abundant number, since it is smaller than the sum of its proper divisors (307433305592).

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

257764410568 is a wasteful number, since it uses less digits than its factorization.

257764410568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107045077 (or 107045073 counting only the distinct ones).

The product of its (nonzero) digits is 11289600, while the sum is 55.

It can be divided in two parts, 25776 and 4410568, that added together give a palindrome (4436344).

The spelling of 257764410568 in words is "two hundred fifty-seven billion, seven hundred sixty-four million, four hundred ten thousand, five hundred sixty-eight".