3851665304356 has 9 divisors (see below), whose sum is σ = 6740421151611. Its totient is φ = 1925830689612.

The previous prime is 3851665304303. The next prime is 3851665304369. The reversal of 3851665304356 is 6534035661583.

It is a happy number.

The square root of 3851665304356 is 1962566.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×3851665304356² (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 = 3851665304297 and 3851665304306.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3434491 + ... + 4415773.

Almost surely, 2^{3851665304356} is an apocalyptic number.

3851665304356 is the 1962566-th square number.

It is an amenable number.

3851665304356 is a deficient number, since it is larger than the sum of its proper divisors (2888755847255).

3851665304356 is an frugal number, since it uses more digits than its factorization.

3851665304356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1962570 (or 981285 counting only the distinct ones).

The product of its (nonzero) digits is 23328000, while the sum is 55.

The spelling of 3851665304356 in words is "three trillion, eight hundred fifty-one billion, six hundred sixty-five million, three hundred four thousand, three hundred fifty-six".