2015649272832 has 176 divisors, whose sum is σ = 5790575871360. Its totient is φ = 619677646848.

The previous prime is 2015649272807. The next prime is 2015649272837. The reversal of 2015649272832 is 2382729465102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2015649272837) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48821094 + ... + 48862362.

It is a 1-persistent number, because it is pandigital, but 2⋅2015649272832 = 4031298545664 is not.

Almost surely, 2^{2015649272832} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2015649272832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2895287935680).

2015649272832 is an abundant number, since it is smaller than the sum of its proper divisors (3774926598528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2015649272832 is a wasteful number, since it uses less digits than its factorization.

2015649272832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42528 (or 42510 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 51.

The spelling of 2015649272832 in words is "two trillion, fifteen billion, six hundred forty-nine million, two hundred seventy-two thousand, eight hundred thirty-two".