36815778345 has 32 divisors (see below), whose sum is σ = 61486636032. Its totient is φ = 18775182272.

The previous prime is 36815778341. The next prime is 36815778353. The reversal of 36815778345 is 54387751863.

It is a cyclic number.

It is not a de Polignac number, because 36815778345 - 2² = 36815778341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36815778341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1138774 + ... + 1170656.

It is an arithmetic number, because the mean of its divisors is an integer number (1921457376).

Almost surely, 2^36815778345 is an apocalyptic number.

It is an amenable number.

36815778345 is a deficient number, since it is larger than the sum of its proper divisors (24670857687).

36815778345 is a wasteful number, since it uses less digits than its factorization.

36815778345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35261.

The product of its digits is 16934400, while the sum is 57.

The spelling of 36815778345 in words is "thirty-six billion, eight hundred fifteen million, seven hundred seventy-eight thousand, three hundred forty-five".