7878046352 has 80 divisors (see below), whose sum is σ = 17380137600. Its totient is φ = 3427507200.

The previous prime is 7878046333. The next prime is 7878046357. The reversal of 7878046352 is 2536408787.

It is a super-2 number, since 2×7878046352² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7878046352.

It is not an unprimeable number, because it can be changed into a prime (7878046357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372149 + ... + 392747.

It is an arithmetic number, because the mean of its divisors is an integer number (217251720).

Almost surely, 2^7878046352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7878046352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8690068800).

7878046352 is an abundant number, since it is smaller than the sum of its proper divisors (9502091248).

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

7878046352 is a wasteful number, since it uses less digits than its factorization.

7878046352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20712 (or 20706 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 50.

The square root of 7878046352 is about 88758.3593358958. The cubic root of 7878046352 is about 1989.7851128622.

The spelling of 7878046352 in words is "seven billion, eight hundred seventy-eight million, forty-six thousand, three hundred fifty-two".