257488497675 has 48 divisors (see below), whose sum is σ = 481033200000. Its totient is φ = 134999598240.

The previous prime is 257488497649. The next prime is 257488497683. The reversal of 257488497675 is 576794884752.

It is a happy number.

257488497675 is a `hidden beast` number, since 2 + 5 + 7 + 488 + 4 + 9 + 76 + 75 = 666.

It is not a de Polignac number, because 257488497675 - 2¹² = 257488493579 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3192925 + ... + 3272574.

It is an arithmetic number, because the mean of its divisors is an integer number (10021525000).

Almost surely, 2^257488497675 is an apocalyptic number.

257488497675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

257488497675 is a deficient number, since it is larger than the sum of its proper divisors (223544702325).

257488497675 is a wasteful number, since it uses less digits than its factorization.

257488497675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6465577 (or 6465566 counting only the distinct ones).

The product of its digits is 948326400, while the sum is 72.

The spelling of 257488497675 in words is "two hundred fifty-seven billion, four hundred eighty-eight million, four hundred ninety-seven thousand, six hundred seventy-five".