6621910348 has 6 divisors (see below), whose sum is σ = 11588343116. Its totient is φ = 3310955172.

The previous prime is 6621910333. The next prime is 6621910357. The reversal of 6621910348 is 8430191266.

It is a super-2 number, since 2×6621910348² = 87699393313898962208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6621910348.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 827738790 + ... + 827738797.

Almost surely, 2^6621910348 is an apocalyptic number.

It is an amenable number.

6621910348 is a deficient number, since it is larger than the sum of its proper divisors (4966432768).

6621910348 is a wasteful number, since it uses less digits than its factorization.

6621910348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1655477591 (or 1655477589 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 6621910348 is about 81375.1211857777. The cubic root of 6621910348 is about 1877.8508665344.

It can be divided in two parts, 66219 and 10348, that added together give a palindrome (76567).

The spelling of 6621910348 in words is "six billion, six hundred twenty-one million, nine hundred ten thousand, three hundred forty-eight".