257345957048 has 16 divisors (see below), whose sum is σ = 483166188960. Its totient is φ = 128501640000.

The previous prime is 257345957021. The next prime is 257345957053. The reversal of 257345957048 is 840759543752.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21410933 + ... + 21422948.

It is an arithmetic number, because the mean of its divisors is an integer number (30197886810).

Almost surely, 2^257345957048 is an apocalyptic number.

It is an amenable number.

257345957048 is a deficient number, since it is larger than the sum of its proper divisors (225820231912).

257345957048 is a wasteful number, since it uses less digits than its factorization.

257345957048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42834638 (or 42834634 counting only the distinct ones).

The product of its (nonzero) digits is 42336000, while the sum is 59.

The spelling of 257345957048 in words is "two hundred fifty-seven billion, three hundred forty-five million, nine hundred fifty-seven thousand, forty-eight".