6945533308477 has 2 divisors, whose sum is σ = 6945533308478. Its totient is φ = 6945533308476.

The previous prime is 6945533308411. The next prime is 6945533308489. The reversal of 6945533308477 is 7748033355496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6166575261081 + 778958047396 = 2483259^2 + 882586^2 .

It is a cyclic number.

It is not a de Polignac number, because 6945533308477 - 2⁷ = 6945533308349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6945533348477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472766654238 + 3472766654239.

It is an arithmetic number, because the mean of its divisors is an integer number (3472766654239).

Almost surely, 2^{6945533308477} is an apocalyptic number.

It is an amenable number.

6945533308477 is a deficient number, since it is larger than the sum of its proper divisors (1).

6945533308477 is an equidigital number, since it uses as much as digits as its factorization.

6945533308477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 228614400, while the sum is 64.

The spelling of 6945533308477 in words is "six trillion, nine hundred forty-five billion, five hundred thirty-three million, three hundred eight thousand, four hundred seventy-seven".