3778685525 has 24 divisors (see below), whose sum is σ = 4916738880. Its totient is φ = 2875283840.

The previous prime is 3778685507. The next prime is 3778685531. The reversal of 3778685525 is 5255868773.

It is not a de Polignac number, because 3778685525 - 2⁸ = 3778685269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84569 + ... + 121281.

It is an arithmetic number, because the mean of its divisors is an integer number (204864120).

Almost surely, 2^3778685525 is an apocalyptic number.

It is an amenable number.

3778685525 is a deficient number, since it is larger than the sum of its proper divisors (1138053355).

3778685525 is a wasteful number, since it uses less digits than its factorization.

3778685525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36925 (or 36920 counting only the distinct ones).

The product of its digits is 14112000, while the sum is 56.

The square root of 3778685525 is about 61471.0136975144. The cubic root of 3778685525 is about 1557.5676433859.

The spelling of 3778685525 in words is "three billion, seven hundred seventy-eight million, six hundred eighty-five thousand, five hundred twenty-five".