13945751945 has 8 divisors (see below), whose sum is σ = 16739860680. Its totient is φ = 11153296000.

The previous prime is 13945751929. The next prime is 13945751957. The reversal of 13945751945 is 54915754931.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1148938816 + 12796813129 = 33896^2 + 113123^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13945751945 - 2⁴ = 13945751929 is a prime.

It is a super-3 number, since 3×13945751945³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394556 + ... + 428445.

It is an arithmetic number, because the mean of its divisors is an integer number (2092482585).

Almost surely, 2^13945751945 is an apocalyptic number.

It is an amenable number.

13945751945 is a deficient number, since it is larger than the sum of its proper divisors (2794108735).

13945751945 is an equidigital number, since it uses as much as digits as its factorization.

13945751945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826395.

The product of its digits is 3402000, while the sum is 53.

The spelling of 13945751945 in words is "thirteen billion, nine hundred forty-five million, seven hundred fifty-one thousand, nine hundred forty-five".