2669696878 has 16 divisors (see below), whose sum is σ = 4318125840. Its totient is φ = 1233748800.

The previous prime is 2669696863. The next prime is 2669696891. The reversal of 2669696878 is 8786969662.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 855213 + ... + 858328.

It is an arithmetic number, because the mean of its divisors is an integer number (269882865).

Almost surely, 2^2669696878 is an apocalyptic number.

2669696878 is a deficient number, since it is larger than the sum of its proper divisors (1648428962).

2669696878 is a wasteful number, since it uses less digits than its factorization.

2669696878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713603.

The product of its digits is 94058496, while the sum is 67.

The square root of 2669696878 is about 51669.1095142930. The cubic root of 2669696878 is about 1387.2476076694.

The spelling of 2669696878 in words is "two billion, six hundred sixty-nine million, six hundred ninety-six thousand, eight hundred seventy-eight".