2881078136 has 16 divisors (see below), whose sum is σ = 5414859240. Its totient is φ = 1437115680.

The previous prime is 2881078133. The next prime is 2881078157. The reversal of 2881078136 is 6318701882.

It is a super-2 number, since 2×2881078136² = 16601222451474468992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2881078133) 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, 424346 + ... + 431081.

Almost surely, 2^2881078136 is an apocalyptic number.

It is an amenable number.

2881078136 is a deficient number, since it is larger than the sum of its proper divisors (2533781104).

2881078136 is a wasteful number, since it uses less digits than its factorization.

2881078136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855854 (or 855850 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 2881078136 is about 53675.6754591873. The cubic root of 2881078136 is about 1422.9348373652.

The spelling of 2881078136 in words is "two billion, eight hundred eighty-one million, seventy-eight thousand, one hundred thirty-six".