1071966923791 has 2 divisors, whose sum is σ = 1071966923792. Its totient is φ = 1071966923790.

The previous prime is 1071966923767. The next prime is 1071966923803. The reversal of 1071966923791 is 1973296691701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1071966923791 - 2²³ = 1071958535183 is a prime.

It is a super-2 number, since 2×1071966923791² (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 (1071966921791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 535983461895 + 535983461896.

It is an arithmetic number, because the mean of its divisors is an integer number (535983461896).

Almost surely, 2^{1071966923791} is an apocalyptic number.

1071966923791 is a deficient number, since it is larger than the sum of its proper divisors (1).

1071966923791 is an equidigital number, since it uses as much as digits as its factorization.

1071966923791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7715736, while the sum is 61.

The spelling of 1071966923791 in words is "one trillion, seventy-one billion, nine hundred sixty-six million, nine hundred twenty-three thousand, seven hundred ninety-one".