1964617701811 has 2 divisors, whose sum is σ = 1964617701812. Its totient is φ = 1964617701810.

The previous prime is 1964617701803. The next prime is 1964617701829. The reversal of 1964617701811 is 1181077164691.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1964617701811 - 2³ = 1964617701803 is a prime.

It is not a weakly prime, because it can be changed into another prime (1964617701881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982308850905 + 982308850906.

It is an arithmetic number, because the mean of its divisors is an integer number (982308850906).

Almost surely, 2^{1964617701811} is an apocalyptic number.

1964617701811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1964617701811 is an equidigital number, since it uses as much as digits as its factorization.

1964617701811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 508032, while the sum is 52.

The spelling of 1964617701811 in words is "one trillion, nine hundred sixty-four billion, six hundred seventeen million, seven hundred one thousand, eight hundred eleven".