36987729643 has 4 divisors (see below), whose sum is σ = 37002773880. Its totient is φ = 36972685408.

The previous prime is 36987729601. The next prime is 36987729671. The reversal of 36987729643 is 34692778963.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34692778963 = 167437 ⋅207199.

It is a cyclic number.

It is not a de Polignac number, because 36987729643 - 2⁹ = 36987729131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36987721643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7518430 + ... + 7523347.

It is an arithmetic number, because the mean of its divisors is an integer number (9250693470).

Almost surely, 2^36987729643 is an apocalyptic number.

36987729643 is a deficient number, since it is larger than the sum of its proper divisors (15044237).

36987729643 is a wasteful number, since it uses less digits than its factorization.

36987729643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15044236.

The product of its digits is 82301184, while the sum is 64.

The spelling of 36987729643 in words is "thirty-six billion, nine hundred eighty-seven million, seven hundred twenty-nine thousand, six hundred forty-three".