36681741989 has 2 divisors, whose sum is σ = 36681741990. Its totient is φ = 36681741988.

The previous prime is 36681741961. The next prime is 36681741997. The reversal of 36681741989 is 98914718663.

36681741989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29183913889 + 7497828100 = 170833^2 + 86590^2 .

It is an emirp because it is prime and its reverse (98914718663) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36681741989 - 2¹⁶ = 36681676453 is a prime.

It is a super-2 number, since 2×36681741989² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36681741919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18340870994 + 18340870995.

It is an arithmetic number, because the mean of its divisors is an integer number (18340870995).

Almost surely, 2^36681741989 is an apocalyptic number.

It is an amenable number.

36681741989 is a deficient number, since it is larger than the sum of its proper divisors (1).

36681741989 is an equidigital number, since it uses as much as digits as its factorization.

36681741989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15676416, while the sum is 62.

The spelling of 36681741989 in words is "thirty-six billion, six hundred eighty-one million, seven hundred forty-one thousand, nine hundred eighty-nine".