1996262978111 has 2 divisors, whose sum is σ = 1996262978112. Its totient is φ = 1996262978110.

The previous prime is 1996262978071. The next prime is 1996262978147. The reversal of 1996262978111 is 1118792626991.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1996262978111 - 2³⁴ = 1979083108927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1996262978711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998131489055 + 998131489056.

It is an arithmetic number, because the mean of its divisors is an integer number (998131489056).

Almost surely, 2^{1996262978111} is an apocalyptic number.

1996262978111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996262978111 is an equidigital number, since it uses as much as digits as its factorization.

1996262978111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5878656, while the sum is 62.

The spelling of 1996262978111 in words is "one trillion, nine hundred ninety-six billion, two hundred sixty-two million, nine hundred seventy-eight thousand, one hundred eleven".