7780275448 has 32 divisors (see below), whose sum is σ = 15995018160. Its totient is φ = 3518529280.

The previous prime is 7780275443. The next prime is 7780275457. The reversal of 7780275448 is 8445720877.

It is a junction number, because it is equal to n+sod(n) for n = 7780275395 and 7780275404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7780275443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 207061 + ... + 241732.

Almost surely, 2^7780275448 is an apocalyptic number.

It is an amenable number.

7780275448 is an abundant number, since it is smaller than the sum of its proper divisors (8214742712).

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

7780275448 is a wasteful number, since it uses less digits than its factorization.

7780275448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449007 (or 449003 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 52.

The square root of 7780275448 is about 88205.8696913080. The cubic root of 7780275448 is about 1981.5193799876.

The spelling of 7780275448 in words is "seven billion, seven hundred eighty million, two hundred seventy-five thousand, four hundred forty-eight".