2015883169849 has 2 divisors, whose sum is σ = 2015883169850. Its totient is φ = 2015883169848.

The previous prime is 2015883169847. The next prime is 2015883169897. The reversal of 2015883169849 is 9489613885102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1094676727824 + 921206442025 = 1046268^2 + 959795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2015883169849 - 2¹ = 2015883169847 is a prime.

Together with 2015883169847, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2015883169847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007941584924 + 1007941584925.

It is an arithmetic number, because the mean of its divisors is an integer number (1007941584925).

Almost surely, 2^{2015883169849} is an apocalyptic number.

It is an amenable number.

2015883169849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015883169849 is an equidigital number, since it uses as much as digits as its factorization.

2015883169849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29859840, while the sum is 64.

The spelling of 2015883169849 in words is "two trillion, fifteen billion, eight hundred eighty-three million, one hundred sixty-nine thousand, eight hundred forty-nine".