2545637318 has 24 divisors (see below), whose sum is σ = 4443782472. Its totient is φ = 1090519584.

The previous prime is 2545637317. The next prime is 2545637377. The reversal of 2545637318 is 8137365452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545637317) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321746 + ... + 329562.

It is an arithmetic number, because the mean of its divisors is an integer number (185157603).

Almost surely, 2^2545637318 is an apocalyptic number.

2545637318 is a deficient number, since it is larger than the sum of its proper divisors (1898145154).

2545637318 is a wasteful number, since it uses less digits than its factorization.

2545637318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11156 (or 11149 counting only the distinct ones).

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

The square root of 2545637318 is about 50454.3092114043. The cubic root of 2545637318 is about 1365.4176412153.

The spelling of 2545637318 in words is "two billion, five hundred forty-five million, six hundred thirty-seven thousand, three hundred eighteen".