28827878134 has 16 divisors (see below), whose sum is σ = 47220242256. Its totient is φ = 13090428000.

The previous prime is 28827878119. The next prime is 28827878203. The reversal of 28827878134 is 43187872882.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 635217 + ... + 679084.

It is an arithmetic number, because the mean of its divisors is an integer number (2951265141).

Almost surely, 2^28827878134 is an apocalyptic number.

28827878134 is a deficient number, since it is larger than the sum of its proper divisors (18392364122).

28827878134 is a wasteful number, since it uses less digits than its factorization.

28827878134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315311.

The product of its digits is 9633792, while the sum is 58.

The spelling of 28827878134 in words is "twenty-eight billion, eight hundred twenty-seven million, eight hundred seventy-eight thousand, one hundred thirty-four".