2628802091 has 2 divisors, whose sum is σ = 2628802092. Its totient is φ = 2628802090.

The previous prime is 2628802087. The next prime is 2628802097. The reversal of 2628802091 is 1902088262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2628802091 - 2² = 2628802087 is a prime.

It is not a weakly prime, because it can be changed into another prime (2628802097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314401045 + 1314401046.

It is an arithmetic number, because the mean of its divisors is an integer number (1314401046).

Almost surely, 2^2628802091 is an apocalyptic number.

2628802091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628802091 is an equidigital number, since it uses as much as digits as its factorization.

2628802091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 2628802091 is about 51271.8450126383. The cubic root of 2628802091 is about 1380.1277783734.

The spelling of 2628802091 in words is "two billion, six hundred twenty-eight million, eight hundred two thousand, ninety-one".