2145364126637 has 2 divisors, whose sum is σ = 2145364126638. Its totient is φ = 2145364126636.

The previous prime is 2145364126627. The next prime is 2145364126643. The reversal of 2145364126637 is 7366214635412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2097092081956 + 48272044681 = 1448134^2 + 219709^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145364126637 - 2²² = 2145359932333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145364126627) 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, 1072682063318 + 1072682063319.

It is an arithmetic number, because the mean of its divisors is an integer number (1072682063319).

Almost surely, 2^{2145364126637} is an apocalyptic number.

It is an amenable number.

2145364126637 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145364126637 is an equidigital number, since it uses as much as digits as its factorization.

2145364126637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 50.

The spelling of 2145364126637 in words is "two trillion, one hundred forty-five billion, three hundred sixty-four million, one hundred twenty-six thousand, six hundred thirty-seven".