2136979285281 has 24 divisors (see below), whose sum is σ = 3088558661760. Its totient is φ = 1423817388000.

The previous prime is 2136979285261. The next prime is 2136979285313. The reversal of 2136979285281 is 1825829796312.

2136979285281 is a `hidden beast` number, since 2 + 1 + 3 + 6 + 9 + 79 + 285 + 281 = 666.

It is not a de Polignac number, because 2136979285281 - 2⁷ = 2136979285153 is a prime.

It is a super-2 number, since 2×2136979285281² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2136979285261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131086831 + ... + 131103131.

It is an arithmetic number, because the mean of its divisors is an integer number (128689944240).

Almost surely, 2^{2136979285281} is an apocalyptic number.

It is an amenable number.

2136979285281 is a deficient number, since it is larger than the sum of its proper divisors (951579376479).

2136979285281 is a wasteful number, since it uses less digits than its factorization.

2136979285281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23957 (or 23954 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 63.

The spelling of 2136979285281 in words is "two trillion, one hundred thirty-six billion, nine hundred seventy-nine million, two hundred eighty-five thousand, two hundred eighty-one".