2644245502 has 16 divisors (see below), whose sum is σ = 4115117952. Its totient is φ = 1272972960.

The previous prime is 2644245481. The next prime is 2644245503. The reversal of 2644245502 is 2055424462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2644245503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96033 + ... + 120460.

It is an arithmetic number, because the mean of its divisors is an integer number (257194872).

Almost surely, 2^2644245502 is an apocalyptic number.

2644245502 is a deficient number, since it is larger than the sum of its proper divisors (1470872450).

2644245502 is a wasteful number, since it uses less digits than its factorization.

2644245502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216723.

The product of its (nonzero) digits is 76800, while the sum is 34.

The square root of 2644245502 is about 51422.2277035914. The cubic root of 2644245502 is about 1382.8251132492.

Adding to 2644245502 its reverse (2055424462), we get a palindrome (4699669964).

The spelling of 2644245502 in words is "two billion, six hundred forty-four million, two hundred forty-five thousand, five hundred two".