1455192378641 has 2 divisors, whose sum is σ = 1455192378642. Its totient is φ = 1455192378640.

The previous prime is 1455192378617. The next prime is 1455192378649. The reversal of 1455192378641 is 1468732915541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1437217345600 + 17975033041 = 1198840^2 + 134071^2 .

It is an emirp because it is prime and its reverse (1468732915541) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1455192378641 is a prime.

It is not a weakly prime, because it can be changed into another prime (1455192378649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 727596189320 + 727596189321.

It is an arithmetic number, because the mean of its divisors is an integer number (727596189321).

Almost surely, 2^{1455192378641} is an apocalyptic number.

It is an amenable number.

1455192378641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1455192378641 is an equidigital number, since it uses as much as digits as its factorization.

1455192378641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7257600, while the sum is 56.

The spelling of 1455192378641 in words is "one trillion, four hundred fifty-five billion, one hundred ninety-two million, three hundred seventy-eight thousand, six hundred forty-one".