2878115999 has 4 divisors (see below), whose sum is σ = 3139762920. Its totient is φ = 2616469080.

The previous prime is 2878115987. The next prime is 2878116001. The reversal of 2878115999 is 9995118782.

2878115999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2878115999 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 (2878115099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130823444 + ... + 130823465.

It is an arithmetic number, because the mean of its divisors is an integer number (784940730).

Almost surely, 2^2878115999 is an apocalyptic number.

2878115999 is a deficient number, since it is larger than the sum of its proper divisors (261646921).

2878115999 is a wasteful number, since it uses less digits than its factorization.

2878115999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261646920.

The product of its digits is 3265920, while the sum is 59.

The square root of 2878115999 is about 53648.0754454435. The cubic root of 2878115999 is about 1422.4470138189.

The spelling of 2878115999 in words is "two billion, eight hundred seventy-eight million, one hundred fifteen thousand, nine hundred ninety-nine".