2912136681 has 8 divisors (see below), whose sum is σ = 3912489504. Its totient is φ = 1926604160.

The previous prime is 2912136679. The next prime is 2912136713. The reversal of 2912136681 is 1866312192.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2912136681 - 2¹ = 2912136679 is a prime.

It is a super-2 number, since 2×2912136681² = 16961080097651391522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2912136641) 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 7 ways as a sum of consecutive naturals, for example, 3704616 + ... + 3705401.

It is an arithmetic number, because the mean of its divisors is an integer number (489061188).

Almost surely, 2^2912136681 is an apocalyptic number.

It is an amenable number.

2912136681 is a deficient number, since it is larger than the sum of its proper divisors (1000352823).

2912136681 is a wasteful number, since it uses less digits than its factorization.

2912136681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7410151.

The product of its digits is 31104, while the sum is 39.

The square root of 2912136681 is about 53964.2166717909. The cubic root of 2912136681 is about 1428.0297382370.

The spelling of 2912136681 in words is "two billion, nine hundred twelve million, one hundred thirty-six thousand, six hundred eighty-one".