2015870726580 has 24 divisors (see below), whose sum is σ = 5644438034592. Its totient is φ = 537565527072.

The previous prime is 2015870726479. The next prime is 2015870726591. The reversal of 2015870726580 is 856270785102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16798922662 + ... + 16798922781.

It is an arithmetic number, because the mean of its divisors is an integer number (235184918108).

Almost surely, 2^{2015870726580} is an apocalyptic number.

2015870726580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2015870726580 is an abundant number, since it is smaller than the sum of its proper divisors (3628567308012).

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

2015870726580 is a wasteful number, since it uses less digits than its factorization.

2015870726580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33597845455 (or 33597845453 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 51.

The spelling of 2015870726580 in words is "two trillion, fifteen billion, eight hundred seventy million, seven hundred twenty-six thousand, five hundred eighty".