7889036064 has 576 divisors, whose sum is σ = 27799511040. Its totient is φ = 1937295360.

The previous prime is 7889036053. The next prime is 7889036123. The reversal of 7889036064 is 4606309887.

It is a super-2 number, since 2×7889036064² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7889035998 and 7889036016.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 99861177 + ... + 99861255.

It is an arithmetic number, because the mean of its divisors is an integer number (48263040).

Almost surely, 2^7889036064 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 7889036064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13899755520).

7889036064 is an abundant number, since it is smaller than the sum of its proper divisors (19910474976).

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

7889036064 is a wasteful number, since it uses less digits than its factorization.

7889036064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 198 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The square root of 7889036064 is about 88820.2458001553. The cubic root of 7889036064 is about 1990.7099193496.

The spelling of 7889036064 in words is "seven billion, eight hundred eighty-nine million, thirty-six thousand, sixty-four".