3384778458725 has 6 divisors (see below), whose sum is σ = 4197125288850. Its totient is φ = 2707822766960.

The previous prime is 3384778458703. The next prime is 3384778458731. The reversal of 3384778458725 is 5278548774833.

It can be written as a sum of positive squares in 3 ways, for example, as 815829852289 + 2568948606436 = 903233^2 + 1602794^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3384778458725 is a prime.

It is a super-2 number, since 2×3384778458725² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 67695569150 + ... + 67695569199.

It is an arithmetic number, because the mean of its divisors is an integer number (699520881475).

Almost surely, 2^{3384778458725} is an apocalyptic number.

It is an amenable number.

3384778458725 is a deficient number, since it is larger than the sum of its proper divisors (812346830125).

3384778458725 is a wasteful number, since it uses less digits than its factorization.

3384778458725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135391138359 (or 135391138354 counting only the distinct ones).

The product of its digits is 1264435200, while the sum is 71.

The spelling of 3384778458725 in words is "three trillion, three hundred eighty-four billion, seven hundred seventy-eight million, four hundred fifty-eight thousand, seven hundred twenty-five".