6992321280 has 288 divisors, whose sum is σ = 25960435200. Its totient is φ = 1570799616.

The previous prime is 6992321269. The next prime is 6992321293. The reversal of 6992321280 is 821232996.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 1583716 + ... + 1588124.

It is an arithmetic number, because the mean of its divisors is an integer number (90140400).

Almost surely, 2^6992321280 is an apocalyptic number.

6992321280 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 6992321280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12980217600).

6992321280 is an abundant number, since it is smaller than the sum of its proper divisors (18968113920).

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

6992321280 is a wasteful number, since it uses less digits than its factorization.

6992321280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499 (or 4485 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 6992321280 is about 83620.1009327303. The cubic root of 6992321280 is about 1912.2314571896.

The spelling of 6992321280 in words is "six billion, nine hundred ninety-two million, three hundred twenty-one thousand, two hundred eighty".