9642151771643 has 2 divisors, whose sum is σ = 9642151771644. Its totient is φ = 9642151771642.

The previous prime is 9642151771631. The next prime is 9642151771657. The reversal of 9642151771643 is 3461771512469.

It is a weak prime.

It is an emirp because it is prime and its reverse (3461771512469) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9642151771643 - 2¹⁴ = 9642151755259 is a prime.

It is not a weakly prime, because it can be changed into another prime (9642151771543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4821075885821 + 4821075885822.

It is an arithmetic number, because the mean of its divisors is an integer number (4821075885822).

Almost surely, 2^{9642151771643} is an apocalyptic number.

9642151771643 is a deficient number, since it is larger than the sum of its proper divisors (1).

9642151771643 is an equidigital number, since it uses as much as digits as its factorization.

9642151771643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 56.

The spelling of 9642151771643 in words is "nine trillion, six hundred forty-two billion, one hundred fifty-one million, seven hundred seventy-one thousand, six hundred forty-three".