2628736081 has 2 divisors, whose sum is σ = 2628736082. Its totient is φ = 2628736080.

The previous prime is 2628736073. The next prime is 2628736087. The reversal of 2628736081 is 1806378262.

2628736081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2288665600 + 340070481 = 47840^2 + 18441^2 .

It is a cyclic number.

It is not a de Polignac number, because 2628736081 - 2³ = 2628736073 is a prime.

It is a super-2 number, since 2×2628736081² = 13820506767102477122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2628736087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1314368040 + 1314368041.

It is an arithmetic number, because the mean of its divisors is an integer number (1314368041).

Almost surely, 2^2628736081 is an apocalyptic number.

It is an amenable number.

2628736081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2628736081 is an equidigital number, since it uses as much as digits as its factorization.

2628736081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 2628736081 is about 51271.2012829815. The cubic root of 2628736081 is about 1380.1162264708.

The spelling of 2628736081 in words is "two billion, six hundred twenty-eight million, seven hundred thirty-six thousand, eighty-one".