6338630761 has 4 divisors (see below), whose sum is σ = 6711491412. Its totient is φ = 5965770112.

The previous prime is 6338630747. The next prime is 6338630777. The reversal of 6338630761 is 1670368336.

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 5392699225 + 945931536 = 73435^2 + 30756^2 .

It is a cyclic number.

It is not a de Polignac number, because 6338630761 - 2³¹ = 4191147113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6338630161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186430300 + ... + 186430333.

It is an arithmetic number, because the mean of its divisors is an integer number (1677872853).

Almost surely, 2^6338630761 is an apocalyptic number.

It is an amenable number.

6338630761 is a deficient number, since it is larger than the sum of its proper divisors (372860651).

6338630761 is a wasteful number, since it uses less digits than its factorization.

6338630761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372860650.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 6338630761 is about 79615.5183428457. The cubic root of 6338630761 is about 1850.6820724321.

The spelling of 6338630761 in words is "six billion, three hundred thirty-eight million, six hundred thirty thousand, seven hundred sixty-one".