2645327403 has 64 divisors (see below), whose sum is σ = 4099737600. Its totient is φ = 1705860000.

The previous prime is 2645327393. The next prime is 2645327411. The reversal of 2645327403 is 3047235462.

2645327403 is a `hidden beast` number, since 2 + 645 + 3 + 2 + 7 + 4 + 0 + 3 = 666.

It is not a de Polignac number, because 2645327403 - 2⁴ = 2645327387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2645327453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10539028 + ... + 10539278.

It is an arithmetic number, because the mean of its divisors is an integer number (64058400).

Almost surely, 2^2645327403 is an apocalyptic number.

2645327403 is a deficient number, since it is larger than the sum of its proper divisors (1454410197).

2645327403 is an frugal number, since it uses more digits than its factorization.

2645327403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 36.

The square root of 2645327403 is about 51432.7464073230. The cubic root of 2645327403 is about 1383.0136832183.

The spelling of 2645327403 in words is "two billion, six hundred forty-five million, three hundred twenty-seven thousand, four hundred three".