45481916709 has 24 divisors (see below), whose sum is σ = 66148700280. Its totient is φ = 30112587648.

The previous prime is 45481916677. The next prime is 45481916723. The reversal of 45481916709 is 90761918454.

45481916709 is a `hidden beast` number, since 4 + 5 + 481 + 91 + 6 + 70 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 4833308484 + 40648608225 = 69522^2 + 201615^2 .

It is not a de Polignac number, because 45481916709 - 2⁵ = 45481916677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45481916749) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3153687 + ... + 3168075.

It is an arithmetic number, because the mean of its divisors is an integer number (2756195845).

Almost surely, 2^45481916709 is an apocalyptic number.

It is an amenable number.

45481916709 is a deficient number, since it is larger than the sum of its proper divisors (20666783571).

45481916709 is a wasteful number, since it uses less digits than its factorization.

45481916709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16789 (or 16786 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 45481916709 in words is "forty-five billion, four hundred eighty-one million, nine hundred sixteen thousand, seven hundred nine".