10442171257 has 8 divisors (see below), whose sum is σ = 12084972800. Its totient is φ = 8837135424.

The previous prime is 10442171249. The next prime is 10442171269. The reversal of 10442171257 is 75217124401.

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

It is a cyclic number.

It is not a de Polignac number, because 10442171257 - 2³ = 10442171249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10442171287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9440832 + ... + 9441937.

It is an arithmetic number, because the mean of its divisors is an integer number (1510621600).

Almost surely, 2^10442171257 is an apocalyptic number.

It is an amenable number.

10442171257 is a deficient number, since it is larger than the sum of its proper divisors (1642801543).

10442171257 is an equidigital number, since it uses as much as digits as its factorization.

10442171257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18882855.

The product of its (nonzero) digits is 15680, while the sum is 34.

Adding to 10442171257 its reverse (75217124401), we get a palindrome (85659295658).

The spelling of 10442171257 in words is "ten billion, four hundred forty-two million, one hundred seventy-one thousand, two hundred fifty-seven".