6723390011 has 4 divisors (see below), whose sum is σ = 7240573872. Its totient is φ = 6206206152.

The previous prime is 6723389987. The next prime is 6723390029. The reversal of 6723390011 is 1100933276.

It is a happy number.

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 6723390011 - 2²⁶ = 6656281147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6723390011.

It is not an unprimeable number, because it can be changed into a prime (6723300011) 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, 258591911 + ... + 258591936.

It is an arithmetic number, because the mean of its divisors is an integer number (1810143468).

Almost surely, 2^6723390011 is an apocalyptic number.

6723390011 is a deficient number, since it is larger than the sum of its proper divisors (517183861).

6723390011 is a wasteful number, since it uses less digits than its factorization.

6723390011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517183860.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 6723390011 is about 81996.2804705189. The cubic root of 6723390011 is about 1887.3948608950.

The spelling of 6723390011 in words is "six billion, seven hundred twenty-three million, three hundred ninety thousand, eleven".