7678259712 has 120 divisors (see below), whose sum is σ = 23463744876. Its totient is φ = 2408841216.

The previous prime is 7678259621. The next prime is 7678259723. The reversal of 7678259712 is 2179528767.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 6371870976 + 1306388736 = 79824^2 + 36144^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29328 + ... + 127344.

Almost surely, 2^7678259712 is an apocalyptic number.

7678259712 is a gapful number since it is divisible by the number (72) 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 7678259712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11731872438).

7678259712 is an abundant number, since it is smaller than the sum of its proper divisors (15785485164).

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

7678259712 is a wasteful number, since it uses less digits than its factorization.

7678259712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98058 (or 98039 counting only the distinct ones).

The product of its digits is 2963520, while the sum is 54.

The square root of 7678259712 is about 87625.6795237560. The cubic root of 7678259712 is about 1972.8206232317.

The spelling of 7678259712 in words is "seven billion, six hundred seventy-eight million, two hundred fifty-nine thousand, seven hundred twelve".