7800439968 has 168 divisors, whose sum is σ = 24238368000. Its totient is φ = 2463156864.

The previous prime is 7800439963. The next prime is 7800439991. The reversal of 7800439968 is 8699340087.

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 (7800439961) 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 27 ways as a sum of consecutive naturals, for example, 434433 + ... + 452031.

It is an arithmetic number, because the mean of its divisors is an integer number (144276000).

Almost surely, 2^7800439968 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 7800439968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12119184000).

7800439968 is an abundant number, since it is smaller than the sum of its proper divisors (16437928032).

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

7800439968 is a wasteful number, since it uses less digits than its factorization.

7800439968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17646 (or 17623 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 7800439968 is about 88320.0994564657. The cubic root of 7800439968 is about 1983.2297700665.

The spelling of 7800439968 in words is "seven billion, eight hundred million, four hundred thirty-nine thousand, nine hundred sixty-eight".