6945981546 has 32 divisors (see below), whose sum is σ = 16100149248. Its totient is φ = 1956613680.

The previous prime is 6945981541. The next prime is 6945981557. The reversal of 6945981546 is 6451895496.

It is not an unprimeable number, because it can be changed into a prime (6945981541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1161670 + ... + 1167633.

It is an arithmetic number, because the mean of its divisors is an integer number (503129664).

Almost surely, 2^6945981546 is an apocalyptic number.

6945981546 is an abundant number, since it is smaller than the sum of its proper divisors (9154167702).

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

6945981546 is a wasteful number, since it uses less digits than its factorization.

6945981546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329386.

The product of its digits is 9331200, while the sum is 57.

The square root of 6945981546 is about 83342.5554323840. Note that the first 3 decimals coincide. The cubic root of 6945981546 is about 1907.9978239013.

The spelling of 6945981546 in words is "six billion, nine hundred forty-five million, nine hundred eighty-one thousand, five hundred forty-six".