2265487531264 has 144 divisors (see below), whose sum is σ = 4929586421760. Its totient is φ = 1035148032000.

The previous prime is 2265487531261. The next prime is 2265487531273. The reversal of 2265487531264 is 4621357845622.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265487531261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46869669 + ... + 46917979.

It is an arithmetic number, because the mean of its divisors is an integer number (34233239040).

Almost surely, 2^{2265487531264} 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 2265487531264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2464793210880).

2265487531264 is an abundant number, since it is smaller than the sum of its proper divisors (2664098890496).

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

2265487531264 is a wasteful number, since it uses less digits than its factorization.

2265487531264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48688 (or 48674 counting only the distinct ones).

The product of its digits is 19353600, while the sum is 55.

The spelling of 2265487531264 in words is "two trillion, two hundred sixty-five billion, four hundred eighty-seven million, five hundred thirty-one thousand, two hundred sixty-four".