8836837541981 has 2 divisors, whose sum is σ = 8836837541982. Its totient is φ = 8836837541980.

The previous prime is 8836837541921. The next prime is 8836837542011. The reversal of 8836837541981 is 1891457386388.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8714652339481 + 122185202500 = 2952059^2 + 349550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8836837541981 is a prime.

It is a super-2 number, since 2×8836837541981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8836837541921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4418418770990 + 4418418770991.

It is an arithmetic number, because the mean of its divisors is an integer number (4418418770991).

Almost surely, 2^{8836837541981} is an apocalyptic number.

It is an amenable number.

8836837541981 is a deficient number, since it is larger than the sum of its proper divisors (1).

8836837541981 is an equidigital number, since it uses as much as digits as its factorization.

8836837541981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 278691840, while the sum is 71.

The spelling of 8836837541981 in words is "eight trillion, eight hundred thirty-six billion, eight hundred thirty-seven million, five hundred forty-one thousand, nine hundred eighty-one".