257281828152 has 64 divisors (see below), whose sum is σ = 644376956160. Its totient is φ = 85604428800.

The previous prime is 257281828121. The next prime is 257281828183. The reversal of 257281828152 is 251828182752.

It is an interprime number because it is at equal distance from previous prime (257281828121) and next prime (257281828183).

It is a junction number, because it is equal to n+sod(n) for n = 257281828095 and 257281828104.

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, 48715752 + ... + 48721032.

It is an arithmetic number, because the mean of its divisors is an integer number (10068389940).

Almost surely, 2^257281828152 is an apocalyptic number.

It is an amenable number.

257281828152 is an abundant number, since it is smaller than the sum of its proper divisors (387095128008).

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

257281828152 is a wasteful number, since it uses less digits than its factorization.

257281828152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8604 (or 8600 counting only the distinct ones).

The product of its digits is 1433600, while the sum is 51.

The spelling of 257281828152 in words is "two hundred fifty-seven billion, two hundred eighty-one million, eight hundred twenty-eight thousand, one hundred fifty-two".