12995569878 has 32 divisors (see below), whose sum is σ = 27370275840. Its totient is φ = 4102187040.

The previous prime is 12995569849. The next prime is 12995569907. The reversal of 12995569878 is 87896559921.

It is an interprime number because it is at equal distance from previous prime (12995569849) and next prime (12995569907).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273376 + ... + 317372.

It is an arithmetic number, because the mean of its divisors is an integer number (855321120).

Almost surely, 2^12995569878 is an apocalyptic number.

12995569878 is an abundant number, since it is smaller than the sum of its proper divisors (14374705962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12995569878 is a wasteful number, since it uses less digits than its factorization.

12995569878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46612.

The product of its digits is 97977600, while the sum is 69.

The spelling of 12995569878 in words is "twelve billion, nine hundred ninety-five million, five hundred sixty-nine thousand, eight hundred seventy-eight".