2878077133 has 4 divisors (see below), whose sum is σ = 2880701820. Its totient is φ = 2875452448.

The previous prime is 2878077127. The next prime is 2878077143. The reversal of 2878077133 is 3317708782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3317708782 = 2 ⋅1658854391.

It can be written as a sum of positive squares in 2 ways, for example, as 1511887689 + 1366189444 = 38883^2 + 36962^2 .

It is a cyclic number.

It is not a de Polignac number, because 2878077133 - 2²⁵ = 2844522701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2878077143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1310698 + ... + 1312891.

It is an arithmetic number, because the mean of its divisors is an integer number (720175455).

Almost surely, 2^2878077133 is an apocalyptic number.

It is an amenable number.

2878077133 is a deficient number, since it is larger than the sum of its proper divisors (2624687).

2878077133 is a wasteful number, since it uses less digits than its factorization.

2878077133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624686.

The product of its (nonzero) digits is 395136, while the sum is 46.

The square root of 2878077133 is about 53647.7132131464. The cubic root of 2878077133 is about 1422.4406108948.

The spelling of 2878077133 in words is "two billion, eight hundred seventy-eight million, seventy-seven thousand, one hundred thirty-three".