36923720389 has 2 divisors, whose sum is σ = 36923720390. Its totient is φ = 36923720388.

The previous prime is 36923720387. The next prime is 36923720411. The reversal of 36923720389 is 98302732963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28609016164 + 8314704225 = 169142^2 + 91185^2 .

It is an emirp because it is prime and its reverse (98302732963) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36923720389 - 2¹ = 36923720387 is a prime.

It is a super-2 number, since 2×36923720389² (a number of 22 digits) contains 22 as substring.

Together with 36923720387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36923720387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18461860194 + 18461860195.

It is an arithmetic number, because the mean of its divisors is an integer number (18461860195).

Almost surely, 2^36923720389 is an apocalyptic number.

It is an amenable number.

36923720389 is a deficient number, since it is larger than the sum of its proper divisors (1).

36923720389 is an equidigital number, since it uses as much as digits as its factorization.

36923720389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The spelling of 36923720389 in words is "thirty-six billion, nine hundred twenty-three million, seven hundred twenty thousand, three hundred eighty-nine".