1067931889949 has 2 divisors, whose sum is σ = 1067931889950. Its totient is φ = 1067931889948.

The previous prime is 1067931889901. The next prime is 1067931889957. The reversal of 1067931889949 is 9499881397601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1003917829849 + 64014060100 = 1001957^2 + 253010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1067931889949 is a prime.

It is a super-2 number, since 2×1067931889949² (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 (1067931880949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533965944974 + 533965944975.

It is an arithmetic number, because the mean of its divisors is an integer number (533965944975).

Almost surely, 2^{1067931889949} is an apocalyptic number.

It is an amenable number.

1067931889949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1067931889949 is an equidigital number, since it uses as much as digits as its factorization.

1067931889949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 211631616, while the sum is 74.

The spelling of 1067931889949 in words is "one trillion, sixty-seven billion, nine hundred thirty-one million, eight hundred eighty-nine thousand, nine hundred forty-nine".