37003649889821 has 2 divisors, whose sum is σ = 37003649889822. Its totient is φ = 37003649889820.

The previous prime is 37003649889797. The next prime is 37003649889847. The reversal of 37003649889821 is 12898894630073.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25047172231225 + 11956477658596 = 5004715^2 + 3457814^2 .

It is an emirp because it is prime and its reverse (12898894630073) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 37003649889821 - 2¹⁸ = 37003649627677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37003679889821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18501824944910 + 18501824944911.

It is an arithmetic number, because the mean of its divisors is an integer number (18501824944911).

Almost surely, 2^{37003649889821} is an apocalyptic number.

It is an amenable number.

37003649889821 is a deficient number, since it is larger than the sum of its proper divisors (1).

37003649889821 is an equidigital number, since it uses as much as digits as its factorization.

37003649889821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 125411328, while the sum is 68.

The spelling of 37003649889821 in words is "thirty-seven trillion, three billion, six hundred forty-nine million, eight hundred eighty-nine thousand, eight hundred twenty-one".