5259648941945 has 4 divisors (see below), whose sum is σ = 6311578730340. Its totient is φ = 4207719153552.

The previous prime is 5259648941941. The next prime is 5259648941969. The reversal of 5259648941945 is 5491498469525.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3080544501904 + 2179104440041 = 1755148^2 + 1476179^2 .

It is a cyclic number.

It is not a de Polignac number, because 5259648941945 - 2² = 5259648941941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5259648941941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525964894190 + ... + 525964894199.

It is an arithmetic number, because the mean of its divisors is an integer number (1577894682585).

Almost surely, 2^{5259648941945} is an apocalyptic number.

It is an amenable number.

5259648941945 is a deficient number, since it is larger than the sum of its proper divisors (1051929788395).

5259648941945 is a wasteful number, since it uses less digits than its factorization.

5259648941945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051929788394.

The product of its digits is 559872000, while the sum is 71.

The spelling of 5259648941945 in words is "five trillion, two hundred fifty-nine billion, six hundred forty-eight million, nine hundred forty-one thousand, nine hundred forty-five".