2630221671 has 32 divisors (see below), whose sum is σ = 4523097600. Its totient is φ = 1319230080.

The previous prime is 2630221669. The next prime is 2630221679. The reversal of 2630221671 is 1761220362.

It is not a de Polignac number, because 2630221671 - 2¹ = 2630221669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2630221679) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 189616 + ... + 203013.

It is an arithmetic number, because the mean of its divisors is an integer number (141346800).

Almost surely, 2^2630221671 is an apocalyptic number.

2630221671 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2630221671 is a deficient number, since it is larger than the sum of its proper divisors (1892875929).

2630221671 is a wasteful number, since it uses less digits than its factorization.

2630221671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392679.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 2630221671 is about 51285.6868044097. The cubic root of 2630221671 is about 1380.3761613715.

The spelling of 2630221671 in words is "two billion, six hundred thirty million, two hundred twenty-one thousand, six hundred seventy-one".