3725281183778 has 32 divisors (see below), whose sum is σ = 6968347481088. Its totient is φ = 1451077448400.

The previous prime is 3725281183759. The next prime is 3725281183873. The reversal of 3725281183778 is 8773811825273.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3725281183778.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2078300 + ... + 3430727.

It is an arithmetic number, because the mean of its divisors is an integer number (217760858784).

Almost surely, 2^{3725281183778} is an apocalyptic number.

3725281183778 is a deficient number, since it is larger than the sum of its proper divisors (3243066297310).

3725281183778 is a wasteful number, since it uses less digits than its factorization.

3725281183778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5513438.

The product of its digits is 31610880, while the sum is 62.

The spelling of 3725281183778 in words is "three trillion, seven hundred twenty-five billion, two hundred eighty-one million, one hundred eighty-three thousand, seven hundred seventy-eight".