7796731385 has 8 divisors (see below), whose sum is σ = 9371858760. Its totient is φ = 6226864384.

The previous prime is 7796731381. The next prime is 7796731387. The reversal of 7796731385 is 5831376977.

It can be written as a sum of positive squares in 4 ways, for example, as 52027369 + 7744704016 = 7213^2 + 88004^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7796731385 - 2² = 7796731381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7796731385.

It is not an unprimeable number, because it can be changed into a prime (7796731381) 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, 1311830 + ... + 1317759.

It is an arithmetic number, because the mean of its divisors is an integer number (1171482345).

Almost surely, 2^7796731385 is an apocalyptic number.

It is an amenable number.

7796731385 is a deficient number, since it is larger than the sum of its proper divisors (1575127375).

7796731385 is a wasteful number, since it uses less digits than its factorization.

7796731385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630187.

The product of its digits is 6667920, while the sum is 56.

The square root of 7796731385 is about 88299.1018357492. The cubic root of 7796731385 is about 1982.9154229208.

The spelling of 7796731385 in words is "seven billion, seven hundred ninety-six million, seven hundred thirty-one thousand, three hundred eighty-five".