3818162725 has 48 divisors (see below), whose sum is σ = 5339158272. Its totient is φ = 2687477760.

The previous prime is 3818162717. The next prime is 3818162743. The reversal of 3818162725 is 5272618183.

It is not a de Polignac number, because 3818162725 - 2³ = 3818162717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2637952 + ... + 2639398.

It is an arithmetic number, because the mean of its divisors is an integer number (111232464).

Almost surely, 2^3818162725 is an apocalyptic number.

It is an amenable number.

3818162725 is a deficient number, since it is larger than the sum of its proper divisors (1520995547).

3818162725 is a wasteful number, since it uses less digits than its factorization.

3818162725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1846 (or 1841 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The square root of 3818162725 is about 61791.2835681539. The cubic root of 3818162725 is about 1562.9730075144.

The spelling of 3818162725 in words is "three billion, eight hundred eighteen million, one hundred sixty-two thousand, seven hundred twenty-five".