520268894945 has 16 divisors (see below), whose sum is σ = 642368589888. Its totient is φ = 404225640000.

The previous prime is 520268894927. The next prime is 520268894953. The reversal of 520268894945 is 549498862025.

It is a de Polignac number, because none of the positive numbers 2^k-520268894945 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2469431 + ... + 2671820.

It is an arithmetic number, because the mean of its divisors is an integer number (40148036868).

Almost surely, 2^520268894945 is an apocalyptic number.

It is an amenable number.

520268894945 is a deficient number, since it is larger than the sum of its proper divisors (122099694943).

520268894945 is a wasteful number, since it uses less digits than its factorization.

520268894945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141840.

The product of its (nonzero) digits is 49766400, while the sum is 62.

The spelling of 520268894945 in words is "five hundred twenty billion, two hundred sixty-eight million, eight hundred ninety-four thousand, nine hundred forty-five".