6730455021 has 8 divisors (see below), whose sum is σ = 8974931040. Its totient is φ = 4486474512.

The previous prime is 6730454909. The next prime is 6730455029. The reversal of 6730455021 is 1205540376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6730455021 - 2⁷ = 6730454893 is a prime.

It is a super-2 number, since 2×6730455021² = 90598049579408220882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6730455029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90931 + ... + 147408.

It is an arithmetic number, because the mean of its divisors is an integer number (1121866380).

Almost surely, 2^6730455021 is an apocalyptic number.

It is an amenable number.

6730455021 is a deficient number, since it is larger than the sum of its proper divisors (2244476019).

6730455021 is a wasteful number, since it uses less digits than its factorization.

6730455021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247755.

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 6730455021 is about 82039.3504423335. The cubic root of 6730455021 is about 1888.0557276901.

Adding to 6730455021 its reverse (1205540376), we get a palindrome (7935995397).

The spelling of 6730455021 in words is "six billion, seven hundred thirty million, four hundred fifty-five thousand, twenty-one".