3912611778425 has 96 divisors (see below), whose sum is σ = 6062135998464. Its totient is φ = 2442908160000.

The previous prime is 3912611778419. The next prime is 3912611778443. The reversal of 3912611778425 is 5248771162193.

It is not a de Polignac number, because 3912611778425 - 2¹⁰ = 3912611777401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 581106359 + ... + 581113091.

It is an arithmetic number, because the mean of its divisors is an integer number (63147249984).

Almost surely, 2^{3912611778425} is an apocalyptic number.

3912611778425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3912611778425 is a deficient number, since it is larger than the sum of its proper divisors (2149524220039).

3912611778425 is a wasteful number, since it uses less digits than its factorization.

3912611778425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13099 (or 13094 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 56.

The spelling of 3912611778425 in words is "three trillion, nine hundred twelve billion, six hundred eleven million, seven hundred seventy-eight thousand, four hundred twenty-five".