6937390680 has 128 divisors (see below), whose sum is σ = 22742899200. Its totient is φ = 1678924800.

The previous prime is 6937390667. The next prime is 6937390699. The reversal of 6937390680 is 860937396.

It is a happy number.

It is a Cunningham number, because it is equal to 83291²-1.

It is a congruent number.

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, 828756 + ... + 837084.

It is an arithmetic number, because the mean of its divisors is an integer number (177678900).

Almost surely, 2^6937390680 is an apocalyptic number.

6937390680 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 6937390680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11371449600).

6937390680 is an abundant number, since it is smaller than the sum of its proper divisors (15805508520).

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

6937390680 is a wasteful number, since it uses less digits than its factorization.

6937390680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8985 (or 8981 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 6937390680 is about 83290.9999939970. Note that the first 5 decimals coincide. The cubic root of 6937390680 is about 1907.2108885181.

The spelling of 6937390680 in words is "six billion, nine hundred thirty-seven million, three hundred ninety thousand, six hundred eighty".