1395826387541 has 2 divisors, whose sum is σ = 1395826387542. Its totient is φ = 1395826387540.

The previous prime is 1395826387493. The next prime is 1395826387559. The reversal of 1395826387541 is 1457836285931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1198116322225 + 197710065316 = 1094585^2 + 444646^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1395826387541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1395826387591) 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, 697913193770 + 697913193771.

It is an arithmetic number, because the mean of its divisors is an integer number (697913193771).

Almost surely, 2^{1395826387541} is an apocalyptic number.

It is an amenable number.

1395826387541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1395826387541 is an equidigital number, since it uses as much as digits as its factorization.

1395826387541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43545600, while the sum is 62.

The spelling of 1395826387541 in words is "one trillion, three hundred ninety-five billion, eight hundred twenty-six million, three hundred eighty-seven thousand, five hundred forty-one".