7863472128 has 104 divisors (see below), whose sum is σ = 22200624288. Its totient is φ = 2466906112.

The previous prime is 7863472117. The next prime is 7863472163. The reversal of 7863472128 is 8212743687.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190075 + ... + 227717.

Almost surely, 2^7863472128 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 7863472128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11100312144).

7863472128 is an abundant number, since it is smaller than the sum of its proper divisors (14337152160).

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

7863472128 is a wasteful number, since it uses less digits than its factorization.

7863472128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37687 (or 37665 counting only the distinct ones).

The product of its digits is 903168, while the sum is 48.

The square root of 7863472128 is about 88676.2207584423. The cubic root of 7863472128 is about 1988.5573348944.

The spelling of 7863472128 in words is "seven billion, eight hundred sixty-three million, four hundred seventy-two thousand, one hundred twenty-eight".