6901989317 has 2 divisors, whose sum is σ = 6901989318. Its totient is φ = 6901989316.

The previous prime is 6901989217. The next prime is 6901989319. The reversal of 6901989317 is 7139891096.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5144619076 + 1757370241 = 71726^2 + 41921^2 .

It is a cyclic number.

It is not a de Polignac number, because 6901989317 - 2²⁰ = 6900940741 is a prime.

Together with 6901989319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6901989319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3450994658 + 3450994659.

It is an arithmetic number, because the mean of its divisors is an integer number (3450994659).

Almost surely, 2^6901989317 is an apocalyptic number.

It is an amenable number.

6901989317 is a deficient number, since it is larger than the sum of its proper divisors (1).

6901989317 is an equidigital number, since it uses as much as digits as its factorization.

6901989317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 734832, while the sum is 53.

The square root of 6901989317 is about 83078.2120474436. The cubic root of 6901989317 is about 1903.9612017971.

The spelling of 6901989317 in words is "six billion, nine hundred one million, nine hundred eighty-nine thousand, three hundred seventeen".