1672764569309 has 2 divisors, whose sum is σ = 1672764569310. Its totient is φ = 1672764569308.

The previous prime is 1672764569261. The next prime is 1672764569353. The reversal of 1672764569309 is 9039654672761.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 849444252409 + 823320316900 = 921653^2 + 907370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672764569309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672764562309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836382284654 + 836382284655.

It is an arithmetic number, because the mean of its divisors is an integer number (836382284655).

Almost surely, 2^{1672764569309} is an apocalyptic number.

It is an amenable number.

1672764569309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672764569309 is an equidigital number, since it uses as much as digits as its factorization.

1672764569309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102876480, while the sum is 65.

The spelling of 1672764569309 in words is "one trillion, six hundred seventy-two billion, seven hundred sixty-four million, five hundred sixty-nine thousand, three hundred nine".