4247981745 has 48 divisors (see below), whose sum is σ = 8036146368. Its totient is φ = 1910079360.

The previous prime is 4247981737. The next prime is 4247981779. The reversal of 4247981745 is 5471897424.

4247981745 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4247981745 - 2³ = 4247981737 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2539 + ... + 92208.

It is an arithmetic number, because the mean of its divisors is an integer number (167419716).

Almost surely, 2^4247981745 is an apocalyptic number.

It is an amenable number.

4247981745 is a deficient number, since it is larger than the sum of its proper divisors (3788164623).

4247981745 is a wasteful number, since it uses less digits than its factorization.

4247981745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94830 (or 94823 counting only the distinct ones).

The product of its digits is 2257920, while the sum is 51.

The square root of 4247981745 is about 65176.5429046371. The cubic root of 4247981745 is about 1619.5494536593.

The spelling of 4247981745 in words is "four billion, two hundred forty-seven million, nine hundred eighty-one thousand, seven hundred forty-five".