3856686453 has 80 divisors (see below), whose sum is σ = 6376138560. Its totient is φ = 2312769024.

The previous prime is 3856686403. The next prime is 3856686461. The reversal of 3856686453 is 3546866583.

It is a happy number.

3856686453 is a `hidden beast` number, since 38 + 566 + 8 + 6 + 45 + 3 = 666.

It is not a de Polignac number, because 3856686453 - 2¹⁶ = 3856620917 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3856686453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3856686403) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3005350 + ... + 3006632.

It is an arithmetic number, because the mean of its divisors is an integer number (79701732).

Almost surely, 2^3856686453 is an apocalyptic number.

It is an amenable number.

3856686453 is a deficient number, since it is larger than the sum of its proper divisors (2519452107).

3856686453 is a wasteful number, since it uses less digits than its factorization.

3856686453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1408 (or 1399 counting only the distinct ones).

The product of its digits is 12441600, while the sum is 54.

The square root of 3856686453 is about 62102.2258296754. The cubic root of 3856686453 is about 1568.2120169032.

The spelling of 3856686453 in words is "three billion, eight hundred fifty-six million, six hundred eighty-six thousand, four hundred fifty-three".