36178034681 has 2 divisors, whose sum is σ = 36178034682. Its totient is φ = 36178034680.

The previous prime is 36178034657. The next prime is 36178034707. The reversal of 36178034681 is 18643087163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25371392656 + 10806642025 = 159284^2 + 103955^2 .

It is a cyclic number.

It is not a de Polignac number, because 36178034681 - 2¹⁸ = 36177772537 is a prime.

It is a super-2 number, since 2×36178034681² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36178334681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18089017340 + 18089017341.

It is an arithmetic number, because the mean of its divisors is an integer number (18089017341).

Almost surely, 2^36178034681 is an apocalyptic number.

It is an amenable number.

36178034681 is a deficient number, since it is larger than the sum of its proper divisors (1).

36178034681 is an equidigital number, since it uses as much as digits as its factorization.

36178034681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 36178034681 in words is "thirty-six billion, one hundred seventy-eight million, thirty-four thousand, six hundred eighty-one".