2545878894 has 64 divisors (see below), whose sum is σ = 6111624960. Its totient is φ = 698457600.

The previous prime is 2545878889. The next prime is 2545878953. The reversal of 2545878894 is 4988785452.

It is a super-3 number, since 3×2545878894³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25332 + ... + 75719.

It is an arithmetic number, because the mean of its divisors is an integer number (95494140).

Almost surely, 2^2545878894 is an apocalyptic number.

2545878894 is an abundant number, since it is smaller than the sum of its proper divisors (3565746066).

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

2545878894 is a wasteful number, since it uses less digits than its factorization.

2545878894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101105.

The product of its digits is 25804800, while the sum is 60.

The square root of 2545878894 is about 50456.7031622162. The cubic root of 2545878894 is about 1365.4608316698.

The spelling of 2545878894 in words is "two billion, five hundred forty-five million, eight hundred seventy-eight thousand, eight hundred ninety-four".