257814769348 has 18 divisors (see below), whose sum is σ = 453120915674. Its totient is φ = 128354025984.

The previous prime is 257814769321. The next prime is 257814769363. The reversal of 257814769348 is 843967418752.

257814769348 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7726761604 + 250088007744 = 87902^2 + 500088^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 257814769348.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 376461 + ... + 810772.

Almost surely, 2^257814769348 is an apocalyptic number.

It is an amenable number.

257814769348 is a deficient number, since it is larger than the sum of its proper divisors (195306146326).

257814769348 is a wasteful number, since it uses less digits than its factorization.

257814769348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1187703 (or 1187468 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 64.

The spelling of 257814769348 in words is "two hundred fifty-seven billion, eight hundred fourteen million, seven hundred sixty-nine thousand, three hundred forty-eight".