7656771634 has 16 divisors (see below), whose sum is σ = 11651380416. Its totient is φ = 3773019600.

The previous prime is 7656771611. The next prime is 7656771637. The reversal of 7656771634 is 4361776567.

It is not an unprimeable number, because it can be changed into a prime (7656771637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426724 + ... + 444304.

It is an arithmetic number, because the mean of its divisors is an integer number (728211276).

Almost surely, 2^7656771634 is an apocalyptic number.

7656771634 is a deficient number, since it is larger than the sum of its proper divisors (3994608782).

7656771634 is a wasteful number, since it uses less digits than its factorization.

7656771634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20721.

The product of its digits is 4445280, while the sum is 52.

The square root of 7656771634 is about 87502.9807149448. The cubic root of 7656771634 is about 1970.9785508407.

The spelling of 7656771634 in words is "seven billion, six hundred fifty-six million, seven hundred seventy-one thousand, six hundred thirty-four".