7869136000 has 128 divisors (see below), whose sum is σ = 21343720320. Its totient is φ = 2861440000.

The previous prime is 7869135979. The next prime is 7869136019. The reversal of 7869136000 is 6319687.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (40).

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, 153645 + ... + 198355.

It is an arithmetic number, because the mean of its divisors is an integer number (166747815).

Almost surely, 2^7869136000 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 7869136000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10671860160).

7869136000 is an abundant number, since it is smaller than the sum of its proper divisors (13474584320).

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

7869136000 is a wasteful number, since it uses less digits than its factorization.

7869136000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44751 (or 44729 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 7869136000 is about 88708.1506965397. The cubic root of 7869136000 is about 1989.0346571665.

The spelling of 7869136000 in words is "seven billion, eight hundred sixty-nine million, one hundred thirty-six thousand".