7725676785 has 8 divisors (see below), whose sum is σ = 12361082880. Its totient is φ = 4120360944.

The previous prime is 7725676753. The next prime is 7725676789. The reversal of 7725676785 is 5876765277.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7725676785 - 2⁵ = 7725676753 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (7725676789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257522545 + ... + 257522574.

It is an arithmetic number, because the mean of its divisors is an integer number (1545135360).

Almost surely, 2^7725676785 is an apocalyptic number.

It is an amenable number.

7725676785 is a deficient number, since it is larger than the sum of its proper divisors (4635406095).

7725676785 is a wasteful number, since it uses less digits than its factorization.

7725676785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515045127.

The product of its digits is 34574400, while the sum is 60.

The square root of 7725676785 is about 87895.8291672591. The cubic root of 7725676785 is about 1976.8733416805.

The spelling of 7725676785 in words is "seven billion, seven hundred twenty-five million, six hundred seventy-six thousand, seven hundred eighty-five".