2545081968 has 240 divisors, whose sum is σ = 8211724416. Its totient is φ = 669511680.

The previous prime is 2545081961. The next prime is 2545082027. The reversal of 2545081968 is 8691805452.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2545081961) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1983055 + ... + 1984337.

Almost surely, 2^2545081968 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 2545081968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4105862208).

2545081968 is an abundant number, since it is smaller than the sum of its proper divisors (5666642448).

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

2545081968 is a wasteful number, since it uses less digits than its factorization.

2545081968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352 (or 1329 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 2545081968 is about 50448.8054169769. The cubic root of 2545081968 is about 1365.3183419383.

The spelling of 2545081968 in words is "two billion, five hundred forty-five million, eighty-one thousand, nine hundred sixty-eight".