3678912469 has 2 divisors, whose sum is σ = 3678912470. Its totient is φ = 3678912468.

The previous prime is 3678912467. The next prime is 3678912511. The reversal of 3678912469 is 9642198763.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3473334225 + 205578244 = 58935^2 + 14338^2 .

It is an emirp because it is prime and its reverse (9642198763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3678912469 - 2¹ = 3678912467 is a prime.

It is a super-2 number, since 2×3678912469² = 27068793909127351922, which contains 22 as substring.

Together with 3678912467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3678912463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1839456234 + 1839456235.

It is an arithmetic number, because the mean of its divisors is an integer number (1839456235).

Almost surely, 2^3678912469 is an apocalyptic number.

It is an amenable number.

3678912469 is a deficient number, since it is larger than the sum of its proper divisors (1).

3678912469 is an equidigital number, since it uses as much as digits as its factorization.

3678912469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 55.

The square root of 3678912469 is about 60654.0391812450. The cubic root of 3678912469 is about 1543.7364251425.

The spelling of 3678912469 in words is "three billion, six hundred seventy-eight million, nine hundred twelve thousand, four hundred sixty-nine".