2645279045 has 4 divisors (see below), whose sum is σ = 3174334860. Its totient is φ = 2116223232.

The previous prime is 2645279029. The next prime is 2645279053. The reversal of 2645279045 is 5409725462.

2645279045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5409725462 = 2 ⋅2704862731.

It can be written as a sum of positive squares in 2 ways, for example, as 387223684 + 2258055361 = 19678^2 + 47519^2 .

It is a cyclic number.

It is not a de Polignac number, because 2645279045 - 2⁴ = 2645279029 is a prime.

It is a super-2 number, since 2×2645279045² = 13995002451832224050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2645278987 and 2645279005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264527900 + ... + 264527909.

It is an arithmetic number, because the mean of its divisors is an integer number (793583715).

Almost surely, 2^2645279045 is an apocalyptic number.

It is an amenable number.

2645279045 is a deficient number, since it is larger than the sum of its proper divisors (529055815).

2645279045 is an equidigital number, since it uses as much as digits as its factorization.

2645279045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529055814.

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 2645279045 is about 51432.2762961158. The cubic root of 2645279045 is about 1383.0052557569.

The spelling of 2645279045 in words is "two billion, six hundred forty-five million, two hundred seventy-nine thousand, forty-five".