3905378024969 has 2 divisors, whose sum is σ = 3905378024970. Its totient is φ = 3905378024968.

The previous prime is 3905378024927. The next prime is 3905378024971. The reversal of 3905378024969 is 9694208735093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3903449761225 + 1928263744 = 1975715^2 + 43912^2 .

It is a cyclic number.

It is not a de Polignac number, because 3905378024969 - 2¹⁶ = 3905377959433 is a prime.

It is a super-2 number, since 2×3905378024969² (a number of 26 digits) contains 22 as substring.

Together with 3905378024971, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3905378024869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1952689012484 + 1952689012485.

It is an arithmetic number, because the mean of its divisors is an integer number (1952689012485).

Almost surely, 2^{3905378024969} is an apocalyptic number.

It is an amenable number.

3905378024969 is a deficient number, since it is larger than the sum of its proper divisors (1).

3905378024969 is an equidigital number, since it uses as much as digits as its factorization.

3905378024969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88179840, while the sum is 65.

The spelling of 3905378024969 in words is "three trillion, nine hundred five billion, three hundred seventy-eight million, twenty-four thousand, nine hundred sixty-nine".