257601475964 has 24 divisors (see below), whose sum is σ = 532968572640. Its totient is φ = 106593713856.

The previous prime is 257601475891. The next prime is 257601476047. The reversal of 257601475964 is 469574106752.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158620787 + ... + 158622410.

It is an arithmetic number, because the mean of its divisors is an integer number (22207023860).

Almost surely, 2^257601475964 is an apocalyptic number.

It is an amenable number.

257601475964 is an abundant number, since it is smaller than the sum of its proper divisors (275367096676).

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

257601475964 is a wasteful number, since it uses less digits than its factorization.

257601475964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317243237 (or 317243235 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 56.

The spelling of 257601475964 in words is "two hundred fifty-seven billion, six hundred one million, four hundred seventy-five thousand, nine hundred sixty-four".