257340395060 has 24 divisors (see below), whose sum is σ = 617616948480. Its totient is φ = 88230992544.

The previous prime is 257340395017. The next prime is 257340395119. The reversal of 257340395060 is 60593043752.

257340395060 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919072700 + ... + 919072979.

It is an arithmetic number, because the mean of its divisors is an integer number (25734039520).

Almost surely, 2^257340395060 is an apocalyptic number.

257340395060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

257340395060 is an abundant number, since it is smaller than the sum of its proper divisors (360276553420).

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

257340395060 is a wasteful number, since it uses less digits than its factorization.

257340395060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838145695 (or 1838145693 counting only the distinct ones).

The product of its (nonzero) digits is 680400, while the sum is 44.

The spelling of 257340395060 in words is "two hundred fifty-seven billion, three hundred forty million, three hundred ninety-five thousand, sixty".