7798506420 has 48 divisors (see below), whose sum is σ = 21842206848. Its totient is φ = 2078993280.

The previous prime is 7798506379. The next prime is 7798506437. The reversal of 7798506420 is 246058977.

It is a self number, because there is not a number n which added to its sum of digits gives 7798506420.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 210705 + ... + 244935.

It is an arithmetic number, because the mean of its divisors is an integer number (455045976).

Almost surely, 2^7798506420 is an apocalyptic number.

It is an amenable number.

7798506420 is an abundant number, since it is smaller than the sum of its proper divisors (14043700428).

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

7798506420 is a wasteful number, since it uses less digits than its factorization.

7798506420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38040 (or 38038 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 48.

The square root of 7798506420 is about 88309.1525267908. The cubic root of 7798506420 is about 1983.0658909837.

The spelling of 7798506420 in words is "seven billion, seven hundred ninety-eight million, five hundred six thousand, four hundred twenty".