4520420645427 has 12 divisors (see below), whose sum is σ = 6529528720104. Its totient is φ = 3013598887200.

The previous prime is 4520420645393. The next prime is 4520420645431. The reversal of 4520420645427 is 7245460240254.

4520420645427 is a `hidden beast` number, since 4 + 5 + 2 + 0 + 42 + 0 + 64 + 542 + 7 = 666.

It is not a de Polignac number, because 4520420645427 - 2⁸ = 4520420645171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4520420645497) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 874552 + ... + 3131402.

It is an arithmetic number, because the mean of its divisors is an integer number (544127393342).

Almost surely, 2^{4520420645427} is an apocalyptic number.

4520420645427 is a deficient number, since it is larger than the sum of its proper divisors (2009108074677).

4520420645427 is a wasteful number, since it uses less digits than its factorization.

4520420645427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479410 (or 2479407 counting only the distinct ones).

The product of its (nonzero) digits is 2150400, while the sum is 45.

The spelling of 4520420645427 in words is "four trillion, five hundred twenty billion, four hundred twenty million, six hundred forty-five thousand, four hundred twenty-seven".