2851657452 has 144 divisors (see below), whose sum is σ = 8759342592. Its totient is φ = 763614720.

The previous prime is 2851657439. The next prime is 2851657489. The reversal of 2851657452 is 2547561582.

2851657452 is a `hidden beast` number, since 28 + 5 + 1 + 6 + 574 + 52 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 2851657398 and 2851657407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1125427 + ... + 1127957.

It is an arithmetic number, because the mean of its divisors is an integer number (60828768).

Almost surely, 2^2851657452 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2851657452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4379671296).

2851657452 is an abundant number, since it is smaller than the sum of its proper divisors (5907685140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2851657452 is a wasteful number, since it uses less digits than its factorization.

2851657452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2828 (or 2823 counting only the distinct ones).

The product of its digits is 672000, while the sum is 45.

The square root of 2851657452 is about 53400.9124641143. The cubic root of 2851657452 is about 1418.0747319940.

The spelling of 2851657452 in words is "two billion, eight hundred fifty-one million, six hundred fifty-seven thousand, four hundred fifty-two".