10351440643 has 2 divisors, whose sum is σ = 10351440644. Its totient is φ = 10351440642.

The previous prime is 10351440629. The next prime is 10351440647. The reversal of 10351440643 is 34604415301.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10351440643 is a prime.

It is not a weakly prime, because it can be changed into another prime (10351440647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5175720321 + 5175720322.

It is an arithmetic number, because the mean of its divisors is an integer number (5175720322).

Almost surely, 2^10351440643 is an apocalyptic number.

10351440643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10351440643 is an equidigital number, since it uses as much as digits as its factorization.

10351440643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 10351440643 its reverse (34604415301), we get a palindrome (44955855944).

The spelling of 10351440643 in words is "ten billion, three hundred fifty-one million, four hundred forty thousand, six hundred forty-three".