7938561694 has 8 divisors (see below), whose sum is σ = 13608962928. Its totient is φ = 3402240720.

The previous prime is 7938561691. The next prime is 7938561707. The reversal of 7938561694 is 4961658397.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7938561691) 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 3 ways as a sum of consecutive naturals, for example, 283520047 + ... + 283520074.

It is an arithmetic number, because the mean of its divisors is an integer number (1701120366).

Almost surely, 2^7938561694 is an apocalyptic number.

7938561694 is a deficient number, since it is larger than the sum of its proper divisors (5670401234).

7938561694 is a wasteful number, since it uses less digits than its factorization.

7938561694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567040130.

The product of its digits is 9797760, while the sum is 58.

The square root of 7938561694 is about 89098.6065772075. The cubic root of 7938561694 is about 1994.8669784821.

The spelling of 7938561694 in words is "seven billion, nine hundred thirty-eight million, five hundred sixty-one thousand, six hundred ninety-four".