1383853851 has 24 divisors (see below), whose sum is σ = 2017604160. Its totient is φ = 913965696.

The previous prime is 1383853831. The next prime is 1383853859. The reversal of 1383853851 is 1583583831.

1383853851 is a `hidden beast` number, since 1 + 38 + 38 + 538 + 51 = 666.

It is not a de Polignac number, because 1383853851 - 2⁵ = 1383853819 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1383853797 and 1383853806.

It is not an unprimeable number, because it can be changed into a prime (1383853859) 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, 873406 + ... + 874988.

It is an arithmetic number, because the mean of its divisors is an integer number (84066840).

Almost surely, 2^1383853851 is an apocalyptic number.

1383853851 is a deficient number, since it is larger than the sum of its proper divisors (633750309).

1383853851 is a wasteful number, since it uses less digits than its factorization.

1383853851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2435 (or 2432 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 1383853851 is about 37200.1861688890. The cubic root of 1383853851 is about 1114.3717028387.

The spelling of 1383853851 in words is "one billion, three hundred eighty-three million, eight hundred fifty-three thousand, eight hundred fifty-one".