7278606672 has 80 divisors (see below), whose sum is σ = 19438964160. Its totient is φ = 2345241600.

The previous prime is 7278606649. The next prime is 7278606691. The reversal of 7278606672 is 2766068727.

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, 197547 + ... + 231477.

It is an arithmetic number, because the mean of its divisors is an integer number (242987052).

Almost surely, 2^7278606672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7278606672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9719482080).

7278606672 is an abundant number, since it is smaller than the sum of its proper divisors (12160357488).

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

7278606672 is a wasteful number, since it uses less digits than its factorization.

7278606672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34092 (or 34086 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 51.

The square root of 7278606672 is about 85314.7506120718. The cubic root of 7278606672 is about 1937.9805634281.

The spelling of 7278606672 in words is "seven billion, two hundred seventy-eight million, six hundred six thousand, six hundred seventy-two".