36688723741 has 4 divisors (see below), whose sum is σ = 36702350172. Its totient is φ = 36675097312.

The previous prime is 36688723681. The next prime is 36688723751. The reversal of 36688723741 is 14732788663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14732788663 = 66037 ⋅223099.

It can be written as a sum of positive squares in 2 ways, for example, as 29972265625 + 6716458116 = 173125^2 + 81954^2 .

It is a cyclic number.

It is not a de Polignac number, because 36688723741 - 2⁷ = 36688723613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36688723751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6809176 + ... + 6814561.

It is an arithmetic number, because the mean of its divisors is an integer number (9175587543).

Almost surely, 2^36688723741 is an apocalyptic number.

It is an amenable number.

36688723741 is a deficient number, since it is larger than the sum of its proper divisors (13626431).

36688723741 is a wasteful number, since it uses less digits than its factorization.

36688723741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13626430.

The product of its digits is 8128512, while the sum is 55.

The spelling of 36688723741 in words is "thirty-six billion, six hundred eighty-eight million, seven hundred twenty-three thousand, seven hundred forty-one".