36611431573 has 2 divisors, whose sum is σ = 36611431574. Its totient is φ = 36611431572.

The previous prime is 36611431517. The next prime is 36611431609. The reversal of 36611431573 is 37513411663.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35979261124 + 632170449 = 189682^2 + 25143^2 .

It is a cyclic number.

It is not a de Polignac number, because 36611431573 - 2²⁹ = 36074560661 is a prime.

It is a super-2 number, since 2×36611431573² (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 (36611431273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18305715786 + 18305715787.

It is an arithmetic number, because the mean of its divisors is an integer number (18305715787).

Almost surely, 2^36611431573 is an apocalyptic number.

It is an amenable number.

36611431573 is a deficient number, since it is larger than the sum of its proper divisors (1).

36611431573 is an equidigital number, since it uses as much as digits as its factorization.

36611431573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The spelling of 36611431573 in words is "thirty-six billion, six hundred eleven million, four hundred thirty-one thousand, five hundred seventy-three".