36968795021 has 2 divisors, whose sum is σ = 36968795022. Its totient is φ = 36968795020.

The previous prime is 36968795009. The next prime is 36968795033. The reversal of 36968795021 is 12059786963.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (36968795009) and next prime (36968795033).

It can be written as a sum of positive squares in only one way, i.e., 36908173225 + 60621796 = 192115^2 + 7786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36968795021 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36968795821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18484397510 + 18484397511.

It is an arithmetic number, because the mean of its divisors is an integer number (18484397511).

Almost surely, 2^36968795021 is an apocalyptic number.

It is an amenable number.

36968795021 is a deficient number, since it is larger than the sum of its proper divisors (1).

36968795021 is an equidigital number, since it uses as much as digits as its factorization.

36968795021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 36968795021 in words is "thirty-six billion, nine hundred sixty-eight million, seven hundred ninety-five thousand, twenty-one".