1631842962049 has 2 divisors, whose sum is σ = 1631842962050. Its totient is φ = 1631842962048.

The previous prime is 1631842962047. The next prime is 1631842962059. The reversal of 1631842962049 is 9402692481361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1277498970225 + 354343991824 = 1130265^2 + 595268^2 .

It is a cyclic number.

It is not a de Polignac number, because 1631842962049 - 2¹ = 1631842962047 is a prime.

It is a super-2 number, since 2×1631842962049² (a number of 25 digits) contains 22 as substring.

Together with 1631842962047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1631842962047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 815921481024 + 815921481025.

It is an arithmetic number, because the mean of its divisors is an integer number (815921481025).

Almost surely, 2^{1631842962049} is an apocalyptic number.

It is an amenable number.

1631842962049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1631842962049 is an equidigital number, since it uses as much as digits as its factorization.

1631842962049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4478976, while the sum is 55.

The spelling of 1631842962049 in words is "one trillion, six hundred thirty-one billion, eight hundred forty-two million, nine hundred sixty-two thousand, forty-nine".