36897278393 has 2 divisors, whose sum is σ = 36897278394. Its totient is φ = 36897278392.

The previous prime is 36897278381. The next prime is 36897278441. The reversal of 36897278393 is 39387279863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27994978489 + 8902299904 = 167317^2 + 94352^2 .

It is a cyclic number.

It is not a de Polignac number, because 36897278393 - 2¹⁶ = 36897212857 is a prime.

It is a super-2 number, since 2×36897278393² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36897278333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18448639196 + 18448639197.

It is an arithmetic number, because the mean of its divisors is an integer number (18448639197).

Almost surely, 2^36897278393 is an apocalyptic number.

It is an amenable number.

36897278393 is a deficient number, since it is larger than the sum of its proper divisors (1).

36897278393 is an equidigital number, since it uses as much as digits as its factorization.

36897278393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 82301184, while the sum is 65.

The spelling of 36897278393 in words is "thirty-six billion, eight hundred ninety-seven million, two hundred seventy-eight thousand, three hundred ninety-three".