2445131711618 has 54 divisors (see below), whose sum is σ = 3928083236721. Its totient is φ = 1141291597824.

The previous prime is 2445131711557. The next prime is 2445131711741. The reversal of 2445131711618 is 8161171315442.

It can be written as a sum of positive squares in 14 ways, for example, as 110980260769 + 2334151450849 = 333137^2 + 1527793^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=1105697.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 7255583546 + ... + 7255583882.

Almost surely, 2^{2445131711618} is an apocalyptic number.

2445131711618 is a deficient number, since it is larger than the sum of its proper divisors (1482951525103).

2445131711618 is an frugal number, since it uses more digits than its factorization.

2445131711618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1096 (or 549 counting only the distinct ones).

The product of its digits is 161280, while the sum is 44.

The spelling of 2445131711618 in words is "two trillion, four hundred forty-five billion, one hundred thirty-one million, seven hundred eleven thousand, six hundred eighteen".