1372537948217 has 2 divisors, whose sum is σ = 1372537948218. Its totient is φ = 1372537948216.

The previous prime is 1372537948157. The next prime is 1372537948253. The reversal of 1372537948217 is 7128497352731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1330380003241 + 42157944976 = 1153421^2 + 205324^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1372537948217 is a prime.

It is not a weakly prime, because it can be changed into another prime (1372537938217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686268974108 + 686268974109.

It is an arithmetic number, because the mean of its divisors is an integer number (686268974109).

Almost surely, 2^{1372537948217} is an apocalyptic number.

It is an amenable number.

1372537948217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372537948217 is an equidigital number, since it uses as much as digits as its factorization.

1372537948217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17781120, while the sum is 59.

The spelling of 1372537948217 in words is "one trillion, three hundred seventy-two billion, five hundred thirty-seven million, nine hundred forty-eight thousand, two hundred seventeen".