10243405257 has 16 divisors (see below), whose sum is σ = 13826070720. Its totient is φ = 6745338432.

The previous prime is 10243405247. The next prime is 10243405307. The reversal of 10243405257 is 75250434201.

It is not a de Polignac number, because 10243405257 - 2¹⁰ = 10243404233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10243405217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19803 + ... + 144495.

It is an arithmetic number, because the mean of its divisors is an integer number (864129420).

Almost surely, 2^10243405257 is an apocalyptic number.

It is an amenable number.

10243405257 is a deficient number, since it is larger than the sum of its proper divisors (3582665463).

10243405257 is a wasteful number, since it uses less digits than its factorization.

10243405257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125032.

The product of its (nonzero) digits is 33600, while the sum is 33.

Adding to 10243405257 its reverse (75250434201), we get a palindrome (85493839458).

The spelling of 10243405257 in words is "ten billion, two hundred forty-three million, four hundred five thousand, two hundred fifty-seven".