6927421440 has 208 divisors, whose sum is σ = 22353959808. Its totient is φ = 1831600128.

The previous prime is 6927421433. The next prime is 6927421463. The reversal of 6927421440 is 441247296.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8416869 + ... + 8417691.

Almost surely, 2^6927421440 is an apocalyptic number.

6927421440 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 6927421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11176979904).

6927421440 is an abundant number, since it is smaller than the sum of its proper divisors (15426538368).

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

6927421440 is a wasteful number, since it uses less digits than its factorization.

6927421440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 39.

The square root of 6927421440 is about 83231.1326367724. The cubic root of 6927421440 is about 1906.2968773351.

The spelling of 6927421440 in words is "six billion, nine hundred twenty-seven million, four hundred twenty-one thousand, four hundred forty".