2013196557791 has 2 divisors, whose sum is σ = 2013196557792. Its totient is φ = 2013196557790.

The previous prime is 2013196557763. The next prime is 2013196557797. The reversal of 2013196557791 is 1977556913102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2013196557791 - 2²² = 2013192363487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2013196557797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006598278895 + 1006598278896.

It is an arithmetic number, because the mean of its divisors is an integer number (1006598278896).

Almost surely, 2^{2013196557791} is an apocalyptic number.

2013196557791 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013196557791 is an equidigital number, since it uses as much as digits as its factorization.

2013196557791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3572100, while the sum is 56.

The spelling of 2013196557791 in words is "two trillion, thirteen billion, one hundred ninety-six million, five hundred fifty-seven thousand, seven hundred ninety-one".