2725191618 has 16 divisors (see below), whose sum is σ = 5450911200. Its totient is φ = 908309216.

The previous prime is 2725191583. The next prime is 2725191631. The reversal of 2725191618 is 8161915272.

It is a self number, because there is not a number n which added to its sum of digits gives 2725191618.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85558 + ... + 113006.

It is an arithmetic number, because the mean of its divisors is an integer number (340681950).

Almost surely, 2^2725191618 is an apocalyptic number.

2725191618 is an abundant number, since it is smaller than the sum of its proper divisors (2725719582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2725191618 is a wasteful number, since it uses less digits than its factorization.

2725191618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44001.

The product of its digits is 60480, while the sum is 42.

The square root of 2725191618 is about 52203.3678798600. The cubic root of 2725191618 is about 1396.7939592560.

The spelling of 2725191618 in words is "two billion, seven hundred twenty-five million, one hundred ninety-one thousand, six hundred eighteen".