2878258545 has 48 divisors (see below), whose sum is σ = 5100967872. Its totient is φ = 1500819840.

The previous prime is 2878258511. The next prime is 2878258573. The reversal of 2878258545 is 5458528782.

2878258545 is a `hidden beast` number, since 2 + 8 + 78 + 25 + 8 + 545 = 666.

It is not a de Polignac number, because 2878258545 - 2⁸ = 2878258289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2878258491 and 2878258500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 730230 + ... + 734160.

It is an arithmetic number, because the mean of its divisors is an integer number (106270164).

Almost surely, 2^2878258545 is an apocalyptic number.

It is an amenable number.

2878258545 is a deficient number, since it is larger than the sum of its proper divisors (2222709327).

2878258545 is a wasteful number, since it uses less digits than its factorization.

2878258545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302 (or 4299 counting only the distinct ones).

The product of its digits is 7168000, while the sum is 54.

The square root of 2878258545 is about 53649.4039575464. The cubic root of 2878258545 is about 1422.4704968641.

The spelling of 2878258545 in words is "two billion, eight hundred seventy-eight million, two hundred fifty-eight thousand, five hundred forty-five".