1141638647797 has 2 divisors, whose sum is σ = 1141638647798. Its totient is φ = 1141638647796.

The previous prime is 1141638647791. The next prime is 1141638647819. The reversal of 1141638647797 is 7977468361411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1126843817841 + 14794829956 = 1061529^2 + 121634^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1141638647797 is a prime.

It is a super-2 number, since 2×1141638647797² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1141638647791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 570819323898 + 570819323899.

It is an arithmetic number, because the mean of its divisors is an integer number (570819323899).

Almost surely, 2^{1141638647797} is an apocalyptic number.

It is an amenable number.

1141638647797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1141638647797 is an equidigital number, since it uses as much as digits as its factorization.

1141638647797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42674688, while the sum is 64.

The spelling of 1141638647797 in words is "one trillion, one hundred forty-one billion, six hundred thirty-eight million, six hundred forty-seven thousand, seven hundred ninety-seven".