2801647356 has 72 divisors (see below), whose sum is σ = 6946660224. Its totient is φ = 878666400.

The previous prime is 2801647279. The next prime is 2801647357. The reversal of 2801647356 is 6537461082.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801647357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651991 + ... + 656273.

It is an arithmetic number, because the mean of its divisors is an integer number (96481392).

Almost surely, 2^2801647356 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 2801647356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3473330112).

2801647356 is an abundant number, since it is smaller than the sum of its proper divisors (4145012868).

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

2801647356 is a wasteful number, since it uses less digits than its factorization.

2801647356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4458 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 2801647356 is about 52930.5899834869. The cubic root of 2801647356 is about 1409.7361067422.

The spelling of 2801647356 in words is "two billion, eight hundred one million, six hundred forty-seven thousand, three hundred fifty-six".