6920009918 has 4 divisors (see below), whose sum is σ = 10380014880. Its totient is φ = 3460004958.

The previous prime is 6920009917. The next prime is 6920009933. The reversal of 6920009918 is 8199000296.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6920009911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1730002478 + ... + 1730002481.

It is an arithmetic number, because the mean of its divisors is an integer number (2595003720).

Almost surely, 2^6920009918 is an apocalyptic number.

6920009918 is a deficient number, since it is larger than the sum of its proper divisors (3460004962).

6920009918 is a wasteful number, since it uses less digits than its factorization.

6920009918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3460004961.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 6920009918 is about 83186.5969853317. The cubic root of 6920009918 is about 1905.6167973085.

The spelling of 6920009918 in words is "six billion, nine hundred twenty million, nine thousand, nine hundred eighteen".