36865365785 has 8 divisors (see below), whose sum is σ = 44644296840. Its totient is φ = 29221720704.

The previous prime is 36865365781. The next prime is 36865365787. The reversal of 36865365785 is 58756356863.

It can be written as a sum of positive squares in 4 ways, for example, as 9789321481 + 27076044304 = 98941^2 + 164548^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 36865365785 - 2² = 36865365781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36865365781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33820892 + ... + 33821981.

It is an arithmetic number, because the mean of its divisors is an integer number (5580537105).

Almost surely, 2^36865365785 is an apocalyptic number.

It is an amenable number.

36865365785 is a deficient number, since it is larger than the sum of its proper divisors (7778931055).

36865365785 is a wasteful number, since it uses less digits than its factorization.

36865365785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67642987.

The product of its digits is 108864000, while the sum is 62.

The spelling of 36865365785 in words is "thirty-six billion, eight hundred sixty-five million, three hundred sixty-five thousand, seven hundred eighty-five".