2878601155 has 4 divisors (see below), whose sum is σ = 3454321392. Its totient is φ = 2302880920.

The previous prime is 2878601129. The next prime is 2878601171. The reversal of 2878601155 is 5511068782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5511068782 = 2 ⋅2755534391.

It is not a de Polignac number, because 2878601155 - 2¹¹ = 2878599107 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287860111 + ... + 287860120.

It is an arithmetic number, because the mean of its divisors is an integer number (863580348).

Almost surely, 2^2878601155 is an apocalyptic number.

2878601155 is a deficient number, since it is larger than the sum of its proper divisors (575720237).

2878601155 is an equidigital number, since it uses as much as digits as its factorization.

2878601155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575720236.

The product of its (nonzero) digits is 134400, while the sum is 43.

The square root of 2878601155 is about 53652.5969082579. The cubic root of 2878601155 is about 1422.5269353058.

The spelling of 2878601155 in words is "two billion, eight hundred seventy-eight million, six hundred one thousand, one hundred fifty-five".