7773489360 has 720 divisors, whose sum is σ = 34662687696. Its totient is φ = 1542094848.

The previous prime is 7773489349. The next prime is 7773489379. The reversal of 7773489360 is 639843777.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 53406864 + 7720082496 = 7308^2 + 87864^2 .

It is a tau number, because it is divible by the number of its divisors (720).

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 7773489297 and 7773489306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 7796382 + ... + 7797378.

Almost surely, 2^7773489360 is an apocalyptic number.

7773489360 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7773489360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17331343848).

7773489360 is an abundant number, since it is smaller than the sum of its proper divisors (26889198336).

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

7773489360 is a wasteful number, since it uses less digits than its factorization.

7773489360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1060 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 54.

The square root of 7773489360 is about 88167.3939730556. The cubic root of 7773489360 is about 1980.9431074905.

The spelling of 7773489360 in words is "seven billion, seven hundred seventy-three million, four hundred eighty-nine thousand, three hundred sixty".