1969041645001 has 2 divisors, whose sum is σ = 1969041645002. Its totient is φ = 1969041645000.

The previous prime is 1969041644993. The next prime is 1969041645017. The reversal of 1969041645001 is 1005461409691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965256319376 + 3785325625 = 1401876^2 + 61525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1969041645001 - 2³ = 1969041644993 is a prime.

It is not a weakly prime, because it can be changed into another prime (1969041645101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 984520822500 + 984520822501.

It is an arithmetic number, because the mean of its divisors is an integer number (984520822501).

Almost surely, 2^{1969041645001} is an apocalyptic number.

It is an amenable number.

1969041645001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1969041645001 is an equidigital number, since it uses as much as digits as its factorization.

1969041645001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 1969041645001 in words is "one trillion, nine hundred sixty-nine billion, forty-one million, six hundred forty-five thousand, one".