2545636896 has 144 divisors (see below), whose sum is σ = 8190026208. Its totient is φ = 771379200.

The previous prime is 2545636883. The next prime is 2545636901. The reversal of 2545636896 is 6986365452.

2545636896 is a `hidden beast` number, since 2 + 545 + 6 + 3 + 6 + 8 + 96 = 666.

2545636896 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70656 + ... + 100416.

It is an arithmetic number, because the mean of its divisors is an integer number (56875182).

Almost surely, 2^2545636896 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 2545636896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4095013104).

2545636896 is an abundant number, since it is smaller than the sum of its proper divisors (5644389312).

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

2545636896 is a wasteful number, since it uses less digits than its factorization.

2545636896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29797 (or 29777 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 54.

The square root of 2545636896 is about 50454.3050294026. The cubic root of 2545636896 is about 1365.4175657651.

The spelling of 2545636896 in words is "two billion, five hundred forty-five million, six hundred thirty-six thousand, eight hundred ninety-six".