7806480220 has 96 divisors (see below), whose sum is σ = 21514590720. Its totient is φ = 2305117440.

The previous prime is 7806480197. The next prime is 7806480221. The reversal of 7806480220 is 220846087.

It is a super-2 number, since 2×7806480220² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7806480220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7806480221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104139 + ... + 162658.

It is an arithmetic number, because the mean of its divisors is an integer number (224110320).

Almost surely, 2^7806480220 is an apocalyptic number.

7806480220 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7806480220 is an abundant number, since it is smaller than the sum of its proper divisors (13708110500).

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

7806480220 is a wasteful number, since it uses less digits than its factorization.

7806480220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266843 (or 266841 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 7806480220 is about 88354.2880679823. The cubic root of 7806480220 is about 1983.7415410666.

The spelling of 7806480220 in words is "seven billion, eight hundred six million, four hundred eighty thousand, two hundred twenty".