427591545655 has 4 divisors (see below), whose sum is σ = 513109854792. Its totient is φ = 342073236520.

The previous prime is 427591545643. The next prime is 427591545659. The reversal of 427591545655 is 556545195724.

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

It is not a de Polignac number, because 427591545655 - 2⁷ = 427591545527 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 427591545655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427591545659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42759154561 + ... + 42759154570.

It is an arithmetic number, because the mean of its divisors is an integer number (128277463698).

Almost surely, 2^427591545655 is an apocalyptic number.

427591545655 is a deficient number, since it is larger than the sum of its proper divisors (85518309137).

427591545655 is an equidigital number, since it uses as much as digits as its factorization.

427591545655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85518309136.

The product of its digits is 37800000, while the sum is 58.

The spelling of 427591545655 in words is "four hundred twenty-seven billion, five hundred ninety-one million, five hundred forty-five thousand, six hundred fifty-five".