2645036505 has 16 divisors (see below), whose sum is σ = 4702287360. Its totient is φ = 1410686064.

The previous prime is 2645036431. The next prime is 2645036509. The reversal of 2645036505 is 5056305462.

It is a happy number.

2645036505 is a `hidden beast` number, since 2 + 645 + 0 + 3 + 6 + 5 + 0 + 5 = 666.

2645036505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2645036505 - 2⁷ = 2645036377 is a prime.

It is a super-2 number, since 2×2645036505² = 13992436225565230050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2645036505.

It is not an unprimeable number, because it can be changed into a prime (2645036509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9796297 + ... + 9796566.

It is an arithmetic number, because the mean of its divisors is an integer number (293892960).

Almost surely, 2^2645036505 is an apocalyptic number.

It is an amenable number.

2645036505 is a deficient number, since it is larger than the sum of its proper divisors (2057250855).

2645036505 is a wasteful number, since it uses less digits than its factorization.

2645036505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19592877 (or 19592871 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The square root of 2645036505 is about 51429.9183841468. The cubic root of 2645036505 is about 1382.9629861965.

The spelling of 2645036505 in words is "two billion, six hundred forty-five million, thirty-six thousand, five hundred five".