1137319978789 has 2 divisors, whose sum is σ = 1137319978790. Its totient is φ = 1137319978788.

The previous prime is 1137319978777. The next prime is 1137319978871. The reversal of 1137319978789 is 9878799137311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1118553718689 + 18766260100 = 1057617^2 + 136990^2 .

It is a cyclic number.

It is not a de Polignac number, because 1137319978789 - 2¹⁷ = 1137319847717 is a prime.

It is a super-2 number, since 2×1137319978789² (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 (1137319978589) 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, 568659989394 + 568659989395.

It is an arithmetic number, because the mean of its divisors is an integer number (568659989395).

Almost surely, 2^{1137319978789} is an apocalyptic number.

It is an amenable number.

1137319978789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1137319978789 is an equidigital number, since it uses as much as digits as its factorization.

1137319978789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144027072, while the sum is 73.

The spelling of 1137319978789 in words is "one trillion, one hundred thirty-seven billion, three hundred nineteen million, nine hundred seventy-eight thousand, seven hundred eighty-nine".