2645921027 has 2 divisors, whose sum is σ = 2645921028. Its totient is φ = 2645921026.

The previous prime is 2645921011. The next prime is 2645921039. The reversal of 2645921027 is 7201295462.

2645921027 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 is a cyclic number.

It is not a de Polignac number, because 2645921027 - 2⁴ = 2645921011 is a prime.

It is a super-2 number, since 2×2645921027² = 14001796162241469458, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2645921077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1322960513 + 1322960514.

It is an arithmetic number, because the mean of its divisors is an integer number (1322960514).

Almost surely, 2^2645921027 is an apocalyptic number.

2645921027 is a deficient number, since it is larger than the sum of its proper divisors (1).

2645921027 is an equidigital number, since it uses as much as digits as its factorization.

2645921027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 2645921027 is about 51438.5169595703. The cubic root of 2645921027 is about 1383.1171270881.

The spelling of 2645921027 in words is "two billion, six hundred forty-five million, nine hundred twenty-one thousand, twenty-seven".