6630346838 has 4 divisors (see below), whose sum is σ = 9945520260. Its totient is φ = 3315173418.

The previous prime is 6630346787. The next prime is 6630346841. The reversal of 6630346838 is 8386430366.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×6630346838² = 87922998384353196488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6630346792 and 6630346801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1657586708 + ... + 1657586711.

It is an arithmetic number, because the mean of its divisors is an integer number (2486380065).

Almost surely, 2^6630346838 is an apocalyptic number.

6630346838 is a deficient number, since it is larger than the sum of its proper divisors (3315173422).

6630346838 is a wasteful number, since it uses less digits than its factorization.

6630346838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3315173421.

The product of its (nonzero) digits is 1492992, while the sum is 47.

The square root of 6630346838 is about 81426.9417207843. The cubic root of 6630346838 is about 1878.6480054300.

The spelling of 6630346838 in words is "six billion, six hundred thirty million, three hundred forty-six thousand, eight hundred thirty-eight".