213981637352841 has 32 divisors (see below), whose sum is σ = 317064737475200. Its totient is φ = 142629720367680.

The previous prime is 213981637352831. The next prime is 213981637352881. The reversal of 213981637352841 is 148253736189312.

213981637352841 is a `hidden beast` number, since 2 + 1 + 3 + 9 + 8 + 1 + 63 + 7 + 3 + 528 + 41 = 666.

It is not a de Polignac number, because 213981637352841 - 2⁵ = 213981637352809 is a prime.

It is a super-2 number, since 2×213981637352841² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213981637352831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6361479075 + ... + 6361512711.

It is an arithmetic number, because the mean of its divisors is an integer number (9908273046100).

Almost surely, 2^{213981637352841} is an apocalyptic number.

It is an amenable number.

213981637352841 is a deficient number, since it is larger than the sum of its proper divisors (103083100122359).

213981637352841 is a wasteful number, since it uses less digits than its factorization.

213981637352841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67446 (or 67440 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 63.

The spelling of 213981637352841 in words is "two hundred thirteen trillion, nine hundred eighty-one billion, six hundred thirty-seven million, three hundred fifty-two thousand, eight hundred forty-one".