1189094784971 has 2 divisors, whose sum is σ = 1189094784972. Its totient is φ = 1189094784970.

The previous prime is 1189094784953. The next prime is 1189094784979. The reversal of 1189094784971 is 1794874909811.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1189094784971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1189094784979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 594547392485 + 594547392486.

It is an arithmetic number, because the mean of its divisors is an integer number (594547392486).

Almost surely, 2^{1189094784971} is an apocalyptic number.

1189094784971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1189094784971 is an equidigital number, since it uses as much as digits as its factorization.

1189094784971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36578304, while the sum is 68.

The spelling of 1189094784971 in words is "one trillion, one hundred eighty-nine billion, ninety-four million, seven hundred eighty-four thousand, nine hundred seventy-one".