37982158321 has 2 divisors, whose sum is σ = 37982158322. Its totient is φ = 37982158320.

The previous prime is 37982158307. The next prime is 37982158343. The reversal of 37982158321 is 12385128973.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22584078400 + 15398079921 = 150280^2 + 124089^2 .

It is a cyclic number.

It is not a de Polignac number, because 37982158321 - 2⁵ = 37982158289 is a prime.

It is not a weakly prime, because it can be changed into another prime (37982158381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18991079160 + 18991079161.

It is an arithmetic number, because the mean of its divisors is an integer number (18991079161).

Almost surely, 2^37982158321 is an apocalyptic number.

It is an amenable number.

37982158321 is a deficient number, since it is larger than the sum of its proper divisors (1).

37982158321 is an equidigital number, since it uses as much as digits as its factorization.

37982158321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 49.

The spelling of 37982158321 in words is "thirty-seven billion, nine hundred eighty-two million, one hundred fifty-eight thousand, three hundred twenty-one".