257353228130 has 8 divisors (see below), whose sum is σ = 463235810652. Its totient is φ = 102941291248.

The previous prime is 257353228127. The next prime is 257353228169. The reversal of 257353228130 is 31822353752.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 252457007401 + 4896220729 = 502451^2 + 69973^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 12867661397 + ... + 12867661416.

Almost surely, 2^257353228130 is an apocalyptic number.

257353228130 is a deficient number, since it is larger than the sum of its proper divisors (205882582522).

257353228130 is a wasteful number, since it uses less digits than its factorization.

257353228130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25735322820.

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 257353228130 in words is "two hundred fifty-seven billion, three hundred fifty-three million, two hundred twenty-eight thousand, one hundred thirty".