36972734437 has 2 divisors, whose sum is σ = 36972734438. Its totient is φ = 36972734436.

The previous prime is 36972734417. The next prime is 36972734459. The reversal of 36972734437 is 73443727963.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32700935556 + 4271798881 = 180834^2 + 65359^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36972734437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36972734417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18486367218 + 18486367219.

It is an arithmetic number, because the mean of its divisors is an integer number (18486367219).

Almost surely, 2^36972734437 is an apocalyptic number.

It is an amenable number.

36972734437 is a deficient number, since it is larger than the sum of its proper divisors (1).

36972734437 is an equidigital number, since it uses as much as digits as its factorization.

36972734437 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16003008, while the sum is 55.

The spelling of 36972734437 in words is "thirty-six billion, nine hundred seventy-two million, seven hundred thirty-four thousand, four hundred thirty-seven".