7878912832 has 28 divisors (see below), whose sum is σ = 17868249760. Its totient is φ = 3376676736.

The previous prime is 7878912817. The next prime is 7878912869. The reversal of 7878912832 is 2382198787.

It is a tau number, because it is divible by the number of its divisors (28).

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 3 ways as a sum of consecutive naturals, for example, 8792982 + ... + 8793877.

Almost surely, 2^7878912832 is an apocalyptic number.

It is an amenable number.

7878912832 is an abundant number, since it is smaller than the sum of its proper divisors (9989336928).

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

7878912832 is a wasteful number, since it uses less digits than its factorization.

7878912832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17586878 (or 17586868 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 55.

The square root of 7878912832 is about 88763.2403194025. The cubic root of 7878912832 is about 1989.8580601269.

The spelling of 7878912832 in words is "seven billion, eight hundred seventy-eight million, nine hundred twelve thousand, eight hundred thirty-two".