2541775878 has 24 divisors (see below), whose sum is σ = 5510448216. Its totient is φ = 846756000.

The previous prime is 2541775867. The next prime is 2541775891. The reversal of 2541775878 is 8785771452.

2541775878 is a `hidden beast` number, since 2 + 54 + 1 + 7 + 7 + 587 + 8 = 666.

It is a super-2 number, since 2×2541775878² = 12921249227965341768, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10048 + ... + 72003.

It is an arithmetic number, because the mean of its divisors is an integer number (229602009).

Almost surely, 2^2541775878 is an apocalyptic number.

2541775878 is an abundant number, since it is smaller than the sum of its proper divisors (2968672338).

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

2541775878 is a wasteful number, since it uses less digits than its factorization.

2541775878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83780 (or 83777 counting only the distinct ones).

The product of its digits is 4390400, while the sum is 54.

The square root of 2541775878 is about 50416.0279871392. The cubic root of 2541775878 is about 1364.7268978242.

The spelling of 2541775878 in words is "two billion, five hundred forty-one million, seven hundred seventy-five thousand, eight hundred seventy-eight".