2091253575871 has 2 divisors, whose sum is σ = 2091253575872. Its totient is φ = 2091253575870.

The previous prime is 2091253575833. The next prime is 2091253575959. The reversal of 2091253575871 is 1785753521902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2091253575871 - 2¹³ = 2091253567679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2091253578871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045626787935 + 1045626787936.

It is an arithmetic number, because the mean of its divisors is an integer number (1045626787936).

Almost surely, 2^{2091253575871} is an apocalyptic number.

2091253575871 is a deficient number, since it is larger than the sum of its proper divisors (1).

2091253575871 is an equidigital number, since it uses as much as digits as its factorization.

2091253575871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5292000, while the sum is 55.

The spelling of 2091253575871 in words is "two trillion, ninety-one billion, two hundred fifty-three million, five hundred seventy-five thousand, eight hundred seventy-one".