6720352730 has 64 divisors (see below), whose sum is σ = 14971703040. Its totient is φ = 2114947584.

The previous prime is 6720352703. The next prime is 6720352741. The reversal of 6720352730 is 372530276.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 142262 + ... + 183518.

It is an arithmetic number, because the mean of its divisors is an integer number (233932860).

Almost surely, 2^6720352730 is an apocalyptic number.

6720352730 is an abundant number, since it is smaller than the sum of its proper divisors (8251350310).

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

6720352730 is a wasteful number, since it uses less digits than its factorization.

6720352730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41463.

The product of its (nonzero) digits is 52920, while the sum is 35.

The square root of 6720352730 is about 81977.7575321501. The cubic root of 6720352730 is about 1887.1106088545.

The spelling of 6720352730 in words is "six billion, seven hundred twenty million, three hundred fifty-two thousand, seven hundred thirty".