162849749641 has 2 divisors, whose sum is σ = 162849749642. Its totient is φ = 162849749640.

The previous prime is 162849749627. The next prime is 162849749669. The reversal of 162849749641 is 146947948261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 153021010041 + 9828739600 = 391179^2 + 99140^2 .

It is an emirp because it is prime and its reverse (146947948261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162849749641 - 2⁵ = 162849749609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 162849749641.

It is not a weakly prime, because it can be changed into another prime (162849741641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81424874820 + 81424874821.

It is an arithmetic number, because the mean of its divisors is an integer number (81424874821).

Almost surely, 2^162849749641 is an apocalyptic number.

It is an amenable number.

162849749641 is a deficient number, since it is larger than the sum of its proper divisors (1).

162849749641 is an equidigital number, since it uses as much as digits as its factorization.

162849749641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20901888, while the sum is 61.

The spelling of 162849749641 in words is "one hundred sixty-two billion, eight hundred forty-nine million, seven hundred forty-nine thousand, six hundred forty-one".