7666278048 has 720 divisors, whose sum is σ = 27989460576. Its totient is φ = 2037934080.

The previous prime is 7666278019. The next prime is 7666278101. The reversal of 7666278048 is 8408726667.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 7666277985 and 7666278003.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 178285515 + ... + 178285557.

Almost surely, 2^7666278048 is an apocalyptic number.

7666278048 is a gapful number since it is divisible by the number (78) 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 7666278048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13994730288).

7666278048 is an abundant number, since it is smaller than the sum of its proper divisors (20323182528).

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

7666278048 is a wasteful number, since it uses less digits than its factorization.

7666278048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139 (or 109 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 54.

The square root of 7666278048 is about 87557.2843799989. The cubic root of 7666278048 is about 1971.7939157632.

The spelling of 7666278048 in words is "seven billion, six hundred sixty-six million, two hundred seventy-eight thousand, forty-eight".