957142667447 has 2 divisors, whose sum is σ = 957142667448. Its totient is φ = 957142667446.

The previous prime is 957142667441. The next prime is 957142667477. The reversal of 957142667447 is 744766241759.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 957142667447 - 2²² = 957138473143 is a prime.

It is a super-2 number, since 2×957142667447² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 957142667447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (957142667441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478571333723 + 478571333724.

It is an arithmetic number, because the mean of its divisors is an integer number (478571333724).

Almost surely, 2^957142667447 is an apocalyptic number.

957142667447 is a deficient number, since it is larger than the sum of its proper divisors (1).

957142667447 is an equidigital number, since it uses as much as digits as its factorization.

957142667447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 71124480, while the sum is 62.

The spelling of 957142667447 in words is "nine hundred fifty-seven billion, one hundred forty-two million, six hundred sixty-seven thousand, four hundred forty-seven".