1672619716813 has 2 divisors, whose sum is σ = 1672619716814. Its totient is φ = 1672619716812.

The previous prime is 1672619716741. The next prime is 1672619716843. The reversal of 1672619716813 is 3186179162761.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1672619716804 + 9 = 1293298^2 + 3^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1672619716813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1672619716843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 836309858406 + 836309858407.

It is an arithmetic number, because the mean of its divisors is an integer number (836309858407).

Almost surely, 2^{1672619716813} is an apocalyptic number.

It is an amenable number.

1672619716813 is a deficient number, since it is larger than the sum of its proper divisors (1).

1672619716813 is an equidigital number, since it uses as much as digits as its factorization.

1672619716813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4572288, while the sum is 58.

The spelling of 1672619716813 in words is "one trillion, six hundred seventy-two billion, six hundred nineteen million, seven hundred sixteen thousand, eight hundred thirteen".