7678328525 has 12 divisors (see below), whose sum is σ = 10881288672. Its totient is φ = 5265139440.

The previous prime is 7678328509. The next prime is 7678328531. The reversal of 7678328525 is 5258238767.

It is a happy number.

It is not a de Polignac number, because 7678328525 - 2⁴ = 7678328509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21937907 + ... + 21938256.

It is an arithmetic number, because the mean of its divisors is an integer number (906774056).

Almost surely, 2^7678328525 is an apocalyptic number.

It is an amenable number.

7678328525 is a deficient number, since it is larger than the sum of its proper divisors (3202960147).

7678328525 is a wasteful number, since it uses less digits than its factorization.

7678328525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43876180 (or 43876175 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 53.

The square root of 7678328525 is about 87626.0721760367. The cubic root of 7678328525 is about 1972.8265167242.

The spelling of 7678328525 in words is "seven billion, six hundred seventy-eight million, three hundred twenty-eight thousand, five hundred twenty-five".