2878787331171 has 12 divisors (see below), whose sum is σ = 4167851717848. Its totient is φ = 1914759238464.

The previous prime is 2878787331151. The next prime is 2878787331263. The reversal of 2878787331171 is 1711337878782.

2878787331171 is a `hidden beast` number, since 2 + 87 + 87 + 87 + 331 + 1 + 71 = 666.

It is not a de Polignac number, because 2878787331171 - 2⁹ = 2878787330659 is a prime.

It is a super-2 number, since 2×2878787331171² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2878787331099 and 2878787331108.

It is not an unprimeable number, because it can be changed into a prime (2878787331151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369355525 + ... + 369363318.

Almost surely, 2^{2878787331171} is an apocalyptic number.

2878787331171 is a deficient number, since it is larger than the sum of its proper divisors (1289064386677).

2878787331171 is a wasteful number, since it uses less digits than its factorization.

2878787331171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 738719282 (or 738719279 counting only the distinct ones).

The product of its digits is 22127616, while the sum is 63.

The spelling of 2878787331171 in words is "two trillion, eight hundred seventy-eight billion, seven hundred eighty-seven million, three hundred thirty-one thousand, one hundred seventy-one".