6930787920 has 160 divisors (see below), whose sum is σ = 24679372800. Its totient is φ = 1576143360.

The previous prime is 6930787907. The next prime is 6930787937. The reversal of 6930787920 is 297870396.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323955 + ... + 344685.

It is an arithmetic number, because the mean of its divisors is an integer number (154246080).

Almost surely, 2^6930787920 is an apocalyptic number.

6930787920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6930787920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12339686400).

6930787920 is an abundant number, since it is smaller than the sum of its proper divisors (17748584880).

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

6930787920 is a wasteful number, since it uses less digits than its factorization.

6930787920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20953 (or 20947 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 6930787920 is about 83251.3538628652. The cubic root of 6930787920 is about 1906.6056247811.

The spelling of 6930787920 in words is "six billion, nine hundred thirty million, seven hundred eighty-seven thousand, nine hundred twenty".