427640358535215 has 64 divisors (see below), whose sum is σ = 809153578598400. Its totient is φ = 188700711381504.

The previous prime is 427640358535151. The next prime is 427640358535249. The reversal of 427640358535215 is 512535853046724.

It is not a de Polignac number, because 427640358535215 - 2⁶ = 427640358535151 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7638447 + ... + 30226256.

It is an arithmetic number, because the mean of its divisors is an integer number (12643024665600).

Almost surely, 2^{427640358535215} is an apocalyptic number.

427640358535215 is a deficient number, since it is larger than the sum of its proper divisors (381513220063185).

427640358535215 is a wasteful number, since it uses less digits than its factorization.

427640358535215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37868456.

The product of its (nonzero) digits is 120960000, while the sum is 60.

The spelling of 427640358535215 in words is "four hundred twenty-seven trillion, six hundred forty billion, three hundred fifty-eight million, five hundred thirty-five thousand, two hundred fifteen".