2115405980810 has 16 divisors (see below), whose sum is σ = 4031714928456. Its totient is φ = 796388133888.

The previous prime is 2115405980801. The next prime is 2115405980813. The reversal of 2115405980810 is 180895045112.

It can be written as a sum of positive squares in 4 ways, for example, as 1913322466441 + 202083514369 = 1383229^2 + 449537^2 .

It is a super-2 number, since 2×2115405980810² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2115405980813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6221782127 + ... + 6221782466.

Almost surely, 2^{2115405980810} is an apocalyptic number.

2115405980810 is a deficient number, since it is larger than the sum of its proper divisors (1916308947646).

2115405980810 is a wasteful number, since it uses less digits than its factorization.

2115405980810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12443564617.

The product of its (nonzero) digits is 115200, while the sum is 44.

The spelling of 2115405980810 in words is "two trillion, one hundred fifteen billion, four hundred five million, nine hundred eighty thousand, eight hundred ten".