2311265442644 has 24 divisors (see below), whose sum is σ = 4096348271400. Its totient is φ = 1140955683840.

The previous prime is 2311265442601. The next prime is 2311265442667. The reversal of 2311265442644 is 4462445621132.

It can be written as a sum of positive squares in 4 ways, for example, as 1143590694544 + 1167674748100 = 1069388^2 + 1080590^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2311265442595 and 2311265442604.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9309989 + ... + 9555020.

It is an arithmetic number, because the mean of its divisors is an integer number (170681177975).

Almost surely, 2^{2311265442644} is an apocalyptic number.

It is an amenable number.

2311265442644 is a deficient number, since it is larger than the sum of its proper divisors (1785082828756).

2311265442644 is a wasteful number, since it uses less digits than its factorization.

2311265442644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18865403 (or 18865401 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 44.

The spelling of 2311265442644 in words is "two trillion, three hundred eleven billion, two hundred sixty-five million, four hundred forty-two thousand, six hundred forty-four".