7661277706 has 8 divisors (see below), whose sum is σ = 11518458084. Its totient is φ = 3821791680.

The previous prime is 7661277691. The next prime is 7661277727. The reversal of 7661277706 is 6077721667.

It can be written as a sum of positive squares in 2 ways, for example, as 5896857681 + 1764420025 = 76791^2 + 42005^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 7661277706.

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, 4422505 + ... + 4424236.

Almost surely, 2^7661277706 is an apocalyptic number.

7661277706 is a deficient number, since it is larger than the sum of its proper divisors (3857180378).

7661277706 is a wasteful number, since it uses less digits than its factorization.

7661277706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8847176.

The product of its (nonzero) digits is 1037232, while the sum is 49.

The square root of 7661277706 is about 87528.7250335568. The cubic root of 7661277706 is about 1971.3651206207.

The spelling of 7661277706 in words is "seven billion, six hundred sixty-one million, two hundred seventy-seven thousand, seven hundred six".