427042557215 has 16 divisors (see below), whose sum is σ = 534953135808. Its totient is φ = 326644978176.

The previous prime is 427042557101. The next prime is 427042557229. The reversal of 427042557215 is 512755240724.

It is a cyclic number.

It is not a de Polignac number, because 427042557215 - 2¹⁴ = 427042540831 is a prime.

It is a Duffinian number.

It is a congruent 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, 490232 + ... + 1046141.

It is an arithmetic number, because the mean of its divisors is an integer number (33434570988).

Almost surely, 2^427042557215 is an apocalyptic number.

427042557215 is a deficient number, since it is larger than the sum of its proper divisors (107910578593).

427042557215 is a wasteful number, since it uses less digits than its factorization.

427042557215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538818.

The product of its (nonzero) digits is 784000, while the sum is 44.

Adding to 427042557215 its reverse (512755240724), we get a palindrome (939797797939).

The spelling of 427042557215 in words is "four hundred twenty-seven billion, forty-two million, five hundred fifty-seven thousand, two hundred fifteen".