6749428620 has 48 divisors (see below), whose sum is σ = 20616438528. Its totient is φ = 1636224960.

The previous prime is 6749428579. The next prime is 6749428627. The reversal of 6749428620 is 268249476.

It is a self number, because there is not a number n which added to its sum of digits gives 6749428620.

It is not an unprimeable number, because it can be changed into a prime (6749428627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5112544 + ... + 5113863.

It is an arithmetic number, because the mean of its divisors is an integer number (429509136).

Almost surely, 2^6749428620 is an apocalyptic number.

6749428620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6749428620 is an abundant number, since it is smaller than the sum of its proper divisors (13867009908).

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

6749428620 is a wasteful number, since it uses less digits than its factorization.

6749428620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10226430 (or 10226428 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 48.

The square root of 6749428620 is about 82154.9062442408. The cubic root of 6749428620 is about 1889.8282478791.

The spelling of 6749428620 in words is "six billion, seven hundred forty-nine million, four hundred twenty-eight thousand, six hundred twenty".