6749620420 has 48 divisors (see below), whose sum is σ = 15034219200. Its totient is φ = 2538207360.

The previous prime is 6749620403. The next prime is 6749620433. The reversal of 6749620420 is 240269476.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18015 + ... + 117574.

It is an arithmetic number, because the mean of its divisors is an integer number (313212900).

Almost surely, 2^6749620420 is an apocalyptic number.

It is an amenable number.

6749620420 is an abundant number, since it is smaller than the sum of its proper divisors (8284598780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6749620420 is a wasteful number, since it uses less digits than its factorization.

6749620420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135748 (or 135746 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 6749620420 is about 82156.0735429828. The cubic root of 6749620420 is about 1889.8461489314.

Adding to 6749620420 its reverse (240269476), we get a palindrome (6989889896).

The spelling of 6749620420 in words is "six billion, seven hundred forty-nine million, six hundred twenty thousand, four hundred twenty".