257102420483 has 2 divisors, whose sum is σ = 257102420484. Its totient is φ = 257102420482.

The previous prime is 257102420417. The next prime is 257102420567. The reversal of 257102420483 is 384024201752.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 257102420483 - 2⁸ = 257102420227 is a prime.

It is a super-2 number, since 2×257102420483² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (257102480483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128551210241 + 128551210242.

It is an arithmetic number, because the mean of its divisors is an integer number (128551210242).

Almost surely, 2^257102420483 is an apocalyptic number.

257102420483 is a deficient number, since it is larger than the sum of its proper divisors (1).

257102420483 is an equidigital number, since it uses as much as digits as its factorization.

257102420483 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 257102420483 in words is "two hundred fifty-seven billion, one hundred two million, four hundred twenty thousand, four hundred eighty-three".