2851004640 has 192 divisors, whose sum is σ = 9908801280. Its totient is φ = 683274240.

The previous prime is 2851004627. The next prime is 2851004677. The reversal of 2851004640 is 464001582.

2851004640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2851004598 and 2851004607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 466887 + ... + 472953.

It is an arithmetic number, because the mean of its divisors is an integer number (51608340).

Almost surely, 2^2851004640 is an apocalyptic number.

2851004640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2851004640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4954400640).

2851004640 is an abundant number, since it is smaller than the sum of its proper divisors (7057796640).

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

2851004640 is a wasteful number, since it uses less digits than its factorization.

2851004640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6185 (or 6177 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 2851004640 is about 53394.7997467918. The cubic root of 2851004640 is about 1417.9665134266.

The spelling of 2851004640 in words is "two billion, eight hundred fifty-one million, four thousand, six hundred forty".