7700931985 has 4 divisors (see below), whose sum is σ = 9241118388. Its totient is φ = 6160745584.

The previous prime is 7700931977. The next prime is 7700932027. The reversal of 7700931985 is 5891390077.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 884943504 + 6815988481 = 29748^2 + 82559^2 .

It is a cyclic number.

It is not a de Polignac number, because 7700931985 - 2³ = 7700931977 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770093194 + ... + 770093203.

It is an arithmetic number, because the mean of its divisors is an integer number (2310279597).

Almost surely, 2^7700931985 is an apocalyptic number.

It is an amenable number.

7700931985 is a deficient number, since it is larger than the sum of its proper divisors (1540186403).

7700931985 is a wasteful number, since it uses less digits than its factorization.

7700931985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1540186402.

The product of its (nonzero) digits is 476280, while the sum is 49.

The square root of 7700931985 is about 87754.9541906325. The cubic root of 7700931985 is about 1974.7604888210.

The spelling of 7700931985 in words is "seven billion, seven hundred million, nine hundred thirty-one thousand, nine hundred eighty-five".