2645456356 has 9 divisors (see below), whose sum is σ = 4629728649. Its totient is φ = 1322676744.

The previous prime is 2645456353. The next prime is 2645456369. The reversal of 2645456356 is 6536545462.

The square root of 2645456356 is 51434.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1581652900 + 1063803456 = 39770^2 + 32616^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645456353) 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 2 ways as a sum of consecutive naturals, for example, 90010 + ... + 115726.

Almost surely, 2^2645456356 is an apocalyptic number.

2645456356 is the 51434-th square number.

It is an amenable number.

2645456356 is a deficient number, since it is larger than the sum of its proper divisors (1984272293).

2645456356 is an frugal number, since it uses more digits than its factorization.

2645456356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51438 (or 25719 counting only the distinct ones).

The product of its digits is 2592000, while the sum is 46.

The cubic root of 2645456356 is about 1383.0361556559.

The spelling of 2645456356 in words is "two billion, six hundred forty-five million, four hundred fifty-six thousand, three hundred fifty-six".