11916673397 has 2 divisors, whose sum is σ = 11916673398. Its totient is φ = 11916673396.

The previous prime is 11916673333. The next prime is 11916673427. The reversal of 11916673397 is 79337661911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11176506961 + 740166436 = 105719^2 + 27206^2 .

It is an emirp because it is prime and its reverse (79337661911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11916673397 - 2⁶ = 11916673333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11916673597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5958336698 + 5958336699.

It is an arithmetic number, because the mean of its divisors is an integer number (5958336699).

Almost surely, 2^11916673397 is an apocalyptic number.

It is an amenable number.

11916673397 is a deficient number, since it is larger than the sum of its proper divisors (1).

11916673397 is an equidigital number, since it uses as much as digits as its factorization.

11916673397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1285956, while the sum is 53.

The spelling of 11916673397 in words is "eleven billion, nine hundred sixteen million, six hundred seventy-three thousand, three hundred ninety-seven".