7798521600 has 162 divisors, whose sum is σ = 27881680736. Its totient is φ = 2079590400.

The previous prime is 7798521589. The next prime is 7798521607. The reversal of 7798521600 is 61258977.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7798521607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 10096 + ... + 125295.

Almost surely, 2^7798521600 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 7798521600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13940840368).

7798521600 is an abundant number, since it is smaller than the sum of its proper divisors (20083159136).

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

7798521600 is a wasteful number, since it uses less digits than its factorization.

7798521600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135423 (or 135401 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 7798521600 is about 88309.2384748051. The cubic root of 7798521600 is about 1983.0671776797.

The spelling of 7798521600 in words is "seven billion, seven hundred ninety-eight million, five hundred twenty-one thousand, six hundred".