2015082125649 has 24 divisors (see below), whose sum is σ = 2926259436672. Its totient is φ = 1336210689600.

The previous prime is 2015082125629. The next prime is 2015082125653. The reversal of 2015082125649 is 9465212805102.

2015082125649 is a `hidden beast` number, since 2 + 0 + 1 + 5 + 0 + 82 + 1 + 2 + 564 + 9 = 666.

It is not a de Polignac number, because 2015082125649 - 2¹² = 2015082121553 is a prime.

It is a super-2 number, since 2×2015082125649² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2015082125629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 873549 + ... + 2189349.

It is an arithmetic number, because the mean of its divisors is an integer number (121927476528).

Almost surely, 2^{2015082125649} is an apocalyptic number.

It is an amenable number.

2015082125649 is a deficient number, since it is larger than the sum of its proper divisors (911177311023).

2015082125649 is a wasteful number, since it uses less digits than its factorization.

2015082125649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316717 (or 1316714 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The spelling of 2015082125649 in words is "two trillion, fifteen billion, eighty-two million, one hundred twenty-five thousand, six hundred forty-nine".