3811117825 has 24 divisors (see below), whose sum is σ = 4941433728. Its totient is φ = 2910314880.

The previous prime is 3811117753. The next prime is 3811117829. The reversal of 3811117825 is 5287111183.

It is a happy number.

It is not a de Polignac number, because 3811117825 - 2³¹ = 1663634177 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3811117829) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 282637 + ... + 295813.

It is an arithmetic number, because the mean of its divisors is an integer number (205893072).

Almost surely, 2^3811117825 is an apocalyptic number.

It is an amenable number.

3811117825 is a deficient number, since it is larger than the sum of its proper divisors (1130315903).

3811117825 is a wasteful number, since it uses less digits than its factorization.

3811117825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13713 (or 13708 counting only the distinct ones).

The product of its digits is 13440, while the sum is 37.

The square root of 3811117825 is about 61734.2516355386. The cubic root of 3811117825 is about 1562.0111341024.

The spelling of 3811117825 in words is "three billion, eight hundred eleven million, one hundred seventeen thousand, eight hundred twenty-five".