2141181691461 has 24 divisors (see below), whose sum is σ = 3121343940000. Its totient is φ = 1414289914272.

The previous prime is 2141181691421. The next prime is 2141181691543. The reversal of 2141181691461 is 1641961811412.

2141181691461 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 181 + 6 + 9 + 1 + 461 = 666.

It is not a de Polignac number, because 2141181691461 - 2²² = 2141177497157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141181691421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27447690 + ... + 27525588.

It is an arithmetic number, because the mean of its divisors is an integer number (130055997500).

Almost surely, 2^{2141181691461} is an apocalyptic number.

It is an amenable number.

2141181691461 is a deficient number, since it is larger than the sum of its proper divisors (980162248539).

2141181691461 is a wasteful number, since it uses less digits than its factorization.

2141181691461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106033 (or 106030 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The spelling of 2141181691461 in words is "two trillion, one hundred forty-one billion, one hundred eighty-one million, six hundred ninety-one thousand, four hundred sixty-one".