3925018905 has 16 divisors (see below), whose sum is σ = 6649444224. Its totient is φ = 1970205440.

The previous prime is 3925018897. The next prime is 3925018907. The reversal of 3925018905 is 5098105293.

3925018905 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3925018905 - 2³ = 3925018897 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3925018907) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7695861 + ... + 7696370.

It is an arithmetic number, because the mean of its divisors is an integer number (415590264).

Almost surely, 2^3925018905 is an apocalyptic number.

It is an amenable number.

3925018905 is a deficient number, since it is larger than the sum of its proper divisors (2724425319).

3925018905 is a wasteful number, since it uses less digits than its factorization.

3925018905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15392256.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 3925018905 is about 62649.9713088522. The cubic root of 3925018905 is about 1577.4196660090.

The spelling of 3925018905 in words is "three billion, nine hundred twenty-five million, eighteen thousand, nine hundred five".