36801557329 has 2 divisors, whose sum is σ = 36801557330. Its totient is φ = 36801557328.

The previous prime is 36801557327. The next prime is 36801557383. The reversal of 36801557329 is 92375510863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26381230929 + 10420326400 = 162423^2 + 102080^2 .

It is a cyclic number.

It is not a de Polignac number, because 36801557329 - 2¹ = 36801557327 is a prime.

It is a super-2 number, since 2×36801557329² (a number of 22 digits) contains 22 as substring.

Together with 36801557327, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36801557327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18400778664 + 18400778665.

It is an arithmetic number, because the mean of its divisors is an integer number (18400778665).

Almost surely, 2^36801557329 is an apocalyptic number.

It is an amenable number.

36801557329 is a deficient number, since it is larger than the sum of its proper divisors (1).

36801557329 is an equidigital number, since it uses as much as digits as its factorization.

36801557329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1360800, while the sum is 49.

The spelling of 36801557329 in words is "thirty-six billion, eight hundred one million, five hundred fifty-seven thousand, three hundred twenty-nine".