36405378683477 has 2 divisors, whose sum is σ = 36405378683478. Its totient is φ = 36405378683476.

The previous prime is 36405378683437. The next prime is 36405378683503. The reversal of 36405378683477 is 77438687350463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27360839716081 + 9044538967396 = 5230759^2 + 3007414^2 .

It is a cyclic number.

It is not a de Polignac number, because 36405378683477 - 2¹⁸ = 36405378421333 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 36405378683477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36405378683417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18202689341738 + 18202689341739.

It is an arithmetic number, because the mean of its divisors is an integer number (18202689341739).

Almost surely, 2^{36405378683477} is an apocalyptic number.

It is an amenable number.

36405378683477 is a deficient number, since it is larger than the sum of its proper divisors (1).

36405378683477 is an equidigital number, since it uses as much as digits as its factorization.

36405378683477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1706987520, while the sum is 71.

The spelling of 36405378683477 in words is "thirty-six trillion, four hundred five billion, three hundred seventy-eight million, six hundred eighty-three thousand, four hundred seventy-seven".