7886615328 has 96 divisors (see below), whose sum is σ = 23206478400. Its totient is φ = 2605575168.

The previous prime is 7886615327. The next prime is 7886615381. The reversal of 7886615328 is 8235166887.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (7886615327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57243 + ... + 138021.

It is an arithmetic number, because the mean of its divisors is an integer number (241734150).

Almost surely, 2^7886615328 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 7886615328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11603239200).

7886615328 is an abundant number, since it is smaller than the sum of its proper divisors (15319863072).

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

7886615328 is a wasteful number, since it uses less digits than its factorization.

7886615328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80911 (or 80897 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 7886615328 is about 88806.6175912584. The cubic root of 7886615328 is about 1990.5062833113.

The spelling of 7886615328 in words is "seven billion, eight hundred eighty-six million, six hundred fifteen thousand, three hundred twenty-eight".