2636505881241 has 16 divisors (see below), whose sum is σ = 3538823844864. Its totient is φ = 1745940937104.

The previous prime is 2636505881237. The next prime is 2636505881249. The reversal of 2636505881241 is 1421885056362.

It is not a de Polignac number, because 2636505881241 - 2² = 2636505881237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2636505881249) 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, 556381 + ... + 2362746.

It is an arithmetic number, because the mean of its divisors is an integer number (221176490304).

Almost surely, 2^{2636505881241} is an apocalyptic number.

It is an amenable number.

2636505881241 is a deficient number, since it is larger than the sum of its proper divisors (902317963623).

2636505881241 is a wasteful number, since it uses less digits than its factorization.

2636505881241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921140.

The product of its (nonzero) digits is 2764800, while the sum is 51.

The spelling of 2636505881241 in words is "two trillion, six hundred thirty-six billion, five hundred five million, eight hundred eighty-one thousand, two hundred forty-one".