3427967215969 has 2 divisors, whose sum is σ = 3427967215970. Its totient is φ = 3427967215968.

The previous prime is 3427967215963. The next prime is 3427967215979. The reversal of 3427967215969 is 9695127697243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2931245319744 + 496721896225 = 1712088^2 + 704785^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3427967215969 is a prime.

It is a super-2 number, since 2×3427967215969² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3427967215898 and 3427967215907.

It is not a weakly prime, because it can be changed into another prime (3427967215963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1713983607984 + 1713983607985.

It is an arithmetic number, because the mean of its divisors is an integer number (1713983607985).

Almost surely, 2^{3427967215969} is an apocalyptic number.

It is an amenable number.

3427967215969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3427967215969 is an equidigital number, since it uses as much as digits as its factorization.

3427967215969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 308629440, while the sum is 70.

The spelling of 3427967215969 in words is "three trillion, four hundred twenty-seven billion, nine hundred sixty-seven million, two hundred fifteen thousand, nine hundred sixty-nine".