6918472380 has 192 divisors, whose sum is σ = 20670676992. Its totient is φ = 1726479360.

The previous prime is 6918472367. The next prime is 6918472391. The reversal of 6918472380 is 832748196.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6364197 + ... + 6365283.

It is an arithmetic number, because the mean of its divisors is an integer number (107659776).

Almost surely, 2^6918472380 is an apocalyptic number.

6918472380 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 6918472380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10335338496).

6918472380 is an abundant number, since it is smaller than the sum of its proper divisors (13752204612).

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

6918472380 is a wasteful number, since it uses less digits than its factorization.

6918472380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244 (or 1242 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 6918472380 is about 83177.3549711699. The cubic root of 6918472380 is about 1905.4756522667.

The spelling of 6918472380 in words is "six billion, nine hundred eighteen million, four hundred seventy-two thousand, three hundred eighty".