257142856310 has 32 divisors (see below), whose sum is σ = 465002832672. Its totient is φ = 102381180160.

The previous prime is 257142856309. The next prime is 257142856343. The reversal of 257142856310 is 13658241752.

It is a super-2 number, since 2×257142856310² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2370050 + ... + 2476170.

It is an arithmetic number, because the mean of its divisors is an integer number (14531338521).

Almost surely, 2^257142856310 is an apocalyptic number.

257142856310 is a deficient number, since it is larger than the sum of its proper divisors (207859976362).

257142856310 is a wasteful number, since it uses less digits than its factorization.

257142856310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107248.

The product of its (nonzero) digits is 403200, while the sum is 44.

The spelling of 257142856310 in words is "two hundred fifty-seven billion, one hundred forty-two million, eight hundred fifty-six thousand, three hundred ten".