7945545889206 has 80 divisors (see below), whose sum is σ = 18585296218368. Its totient is φ = 2532366342000.

The previous prime is 7945545889189. The next prime is 7945545889271. The reversal of 7945545889206 is 6029885455497.

7945545889206 is a `hidden beast` number, since 7 + 9 + 455 + 4 + 5 + 88 + 92 + 0 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 9087061 + ... + 9922991.

Almost surely, 2^{7945545889206} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7945545889206, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9292648109184).

7945545889206 is an abundant number, since it is smaller than the sum of its proper divisors (10639750329162).

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

7945545889206 is a wasteful number, since it uses less digits than its factorization.

7945545889206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838519 (or 838510 counting only the distinct ones).

The product of its (nonzero) digits is 870912000, while the sum is 72.

The spelling of 7945545889206 in words is "seven trillion, nine hundred forty-five billion, five hundred forty-five million, eight hundred eighty-nine thousand, two hundred six".