1970966084491 has 2 divisors, whose sum is σ = 1970966084492. Its totient is φ = 1970966084490.

The previous prime is 1970966084411. The next prime is 1970966084579. The reversal of 1970966084491 is 1944806690791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1970966084491 - 2³¹ = 1968818600843 is a prime.

It is not a weakly prime, because it can be changed into another prime (1970966084411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 985483042245 + 985483042246.

It is an arithmetic number, because the mean of its divisors is an integer number (985483042246).

Almost surely, 2^{1970966084491} is an apocalyptic number.

1970966084491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1970966084491 is an equidigital number, since it uses as much as digits as its factorization.

1970966084491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 1970966084491 in words is "one trillion, nine hundred seventy billion, nine hundred sixty-six million, eighty-four thousand, four hundred ninety-one".