1973086094491 has 2 divisors, whose sum is σ = 1973086094492. Its totient is φ = 1973086094490.

The previous prime is 1973086094477. The next prime is 1973086094533. The reversal of 1973086094491 is 1944906803791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1973086094491 - 2¹¹ = 1973086092443 is a prime.

It is not a weakly prime, because it can be changed into another prime (1973086094191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 986543047245 + 986543047246.

It is an arithmetic number, because the mean of its divisors is an integer number (986543047246).

Almost surely, 2^{1973086094491} is an apocalyptic number.

1973086094491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1973086094491 is an equidigital number, since it uses as much as digits as its factorization.

1973086094491 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11757312, while the sum is 61.

The spelling of 1973086094491 in words is "one trillion, nine hundred seventy-three billion, eighty-six million, ninety-four thousand, four hundred ninety-one".