6890337171997 has 2 divisors, whose sum is σ = 6890337171998. Its totient is φ = 6890337171996.

The previous prime is 6890337171953. The next prime is 6890337172013. The reversal of 6890337171997 is 7991717330986.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4779203727321 + 2111133444676 = 2186139^2 + 1452974^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6890337171997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6890337171397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3445168585998 + 3445168585999.

It is an arithmetic number, because the mean of its divisors is an integer number (3445168585999).

Almost surely, 2^{6890337171997} is an apocalyptic number.

It is an amenable number.

6890337171997 is a deficient number, since it is larger than the sum of its proper divisors (1).

6890337171997 is an equidigital number, since it uses as much as digits as its factorization.

6890337171997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108020304, while the sum is 70.

The spelling of 6890337171997 in words is "six trillion, eight hundred ninety billion, three hundred thirty-seven million, one hundred seventy-one thousand, nine hundred ninety-seven".