7853317920 has 288 divisors, whose sum is σ = 30747330432. Its totient is φ = 1788051456.

The previous prime is 7853317919. The next prime is 7853317933. The reversal of 7853317920 is 297133587.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (288).

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

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 2851264 + ... + 2854016.

It is an arithmetic number, because the mean of its divisors is an integer number (106761564).

Almost surely, 2^7853317920 is an apocalyptic number.

7853317920 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 7853317920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15373665216).

7853317920 is an abundant number, since it is smaller than the sum of its proper divisors (22894012512).

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

7853317920 is a wasteful number, since it uses less digits than its factorization.

7853317920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064 (or 3053 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 7853317920 is about 88618.9478610528. The cubic root of 7853317920 is about 1987.7010158617.

The spelling of 7853317920 in words is "seven billion, eight hundred fifty-three million, three hundred seventeen thousand, nine hundred twenty".