2801652221 has 16 divisors (see below), whose sum is σ = 2908633728. Its totient is φ = 2696716800.

The previous prime is 2801652209. The next prime is 2801652223. The reversal of 2801652221 is 1222561082.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2801652221 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801652223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1295381 + ... + 1297541.

It is an arithmetic number, because the mean of its divisors is an integer number (181789608).

Almost surely, 2^2801652221 is an apocalyptic number.

It is an amenable number.

2801652221 is a deficient number, since it is larger than the sum of its proper divisors (106981507).

2801652221 is a wasteful number, since it uses less digits than its factorization.

2801652221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 2801652221 is about 52930.6359398789. The cubic root of 2801652221 is about 1409.7369227338.

The spelling of 2801652221 in words is "two billion, eight hundred one million, six hundred fifty-two thousand, two hundred twenty-one".