3811725666135 has 48 divisors (see below), whose sum is σ = 6719331041280. Its totient is φ = 1998357900480.

The previous prime is 3811725666131. The next prime is 3811725666149. The reversal of 3811725666135 is 5316665271183.

It is not a de Polignac number, because 3811725666135 - 2² = 3811725666131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3811725666131) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 89693862 + ... + 89736348.

It is an arithmetic number, because the mean of its divisors is an integer number (139986063360).

Almost surely, 2^{3811725666135} is an apocalyptic number.

3811725666135 is a deficient number, since it is larger than the sum of its proper divisors (2907605375145).

3811725666135 is a wasteful number, since it uses less digits than its factorization.

3811725666135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76348 (or 76345 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 54.

The spelling of 3811725666135 in words is "three trillion, eight hundred eleven billion, seven hundred twenty-five million, six hundred sixty-six thousand, one hundred thirty-five".