3925708278671 has 4 divisors (see below), whose sum is σ = 3925718538192. Its totient is φ = 3925698019152.

The previous prime is 3925708278643. The next prime is 3925708278707. The reversal of 3925708278671 is 1768728075293.

3925708278671 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3925708278671 is a prime.

It is a super-2 number, since 2×3925708278671² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3925708278598 and 3925708278607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3925708278871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4532630 + ... + 5328803.

It is an arithmetic number, because the mean of its divisors is an integer number (981429634548).

Almost surely, 2^{3925708278671} is an apocalyptic number.

3925708278671 is a deficient number, since it is larger than the sum of its proper divisors (10259521).

3925708278671 is an equidigital number, since it uses as much as digits as its factorization.

3925708278671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10259520.

The product of its (nonzero) digits is 71124480, while the sum is 65.

The spelling of 3925708278671 in words is "three trillion, nine hundred twenty-five billion, seven hundred eight million, two hundred seventy-eight thousand, six hundred seventy-one".