2312441500644 has 144 divisors (see below), whose sum is σ = 6422145859584. Its totient is φ = 695765937600.

The previous prime is 2312441500637. The next prime is 2312441500661. The reversal of 2312441500644 is 4460051442132.

2312441500644 is a `hidden beast` number, since 2 + 3 + 1 + 2 + 4 + 4 + 1 + 5 + 0 + 0 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2312441500599 and 2312441500608.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 33787779 + ... + 33856149.

It is an arithmetic number, because the mean of its divisors is an integer number (44598235136).

Almost surely, 2^{2312441500644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2312441500644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3211072929792).

2312441500644 is an abundant number, since it is smaller than the sum of its proper divisors (4109704358940).

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

2312441500644 is a wasteful number, since it uses less digits than its factorization.

2312441500644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68998 (or 68993 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 2312441500644 its reverse (4460051442132), we get a palindrome (6772492942776).

The spelling of 2312441500644 in words is "two trillion, three hundred twelve billion, four hundred forty-one million, five hundred thousand, six hundred forty-four".