36920739217 has 2 divisors, whose sum is σ = 36920739218. Its totient is φ = 36920739216.

The previous prime is 36920739161. The next prime is 36920739287. The reversal of 36920739217 is 71293702963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29900980561 + 7019758656 = 172919^2 + 83784^2 .

It is a cyclic number.

It is not a de Polignac number, because 36920739217 - 2¹¹ = 36920737169 is a prime.

It is not a weakly prime, because it can be changed into another prime (36920739287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18460369608 + 18460369609.

It is an arithmetic number, because the mean of its divisors is an integer number (18460369609).

Almost surely, 2^36920739217 is an apocalyptic number.

It is an amenable number.

36920739217 is a deficient number, since it is larger than the sum of its proper divisors (1).

36920739217 is an equidigital number, since it uses as much as digits as its factorization.

36920739217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 36920739217 in words is "thirty-six billion, nine hundred twenty million, seven hundred thirty-nine thousand, two hundred seventeen".