6720607051 has 4 divisors (see below), whose sum is σ = 6725703600. Its totient is φ = 6715510504.

The previous prime is 6720607037. The next prime is 6720607081. The reversal of 6720607051 is 1507060276.

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

It is a cyclic number.

It is not a de Polignac number, because 6720607051 - 2²¹ = 6718509899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6720606998 and 6720607016.

It is not an unprimeable number, because it can be changed into a prime (6720607081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2546296 + ... + 2548933.

It is an arithmetic number, because the mean of its divisors is an integer number (1681425900).

Almost surely, 2^6720607051 is an apocalyptic number.

6720607051 is a deficient number, since it is larger than the sum of its proper divisors (5096549).

6720607051 is a wasteful number, since it uses less digits than its factorization.

6720607051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5096548.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 6720607051 is about 81979.3086760312. The cubic root of 6720607051 is about 1887.1344134484.

The spelling of 6720607051 in words is "six billion, seven hundred twenty million, six hundred seven thousand, fifty-one".