427187862447 has 64 divisors (see below), whose sum is σ = 620248596480. Its totient is φ = 260537446400.

The previous prime is 427187862427. The next prime is 427187862457. The reversal of 427187862447 is 744268781724.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 427187862447 - 2¹¹ = 427187860399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427187862407) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 123427297 + ... + 123430757.

It is an arithmetic number, because the mean of its divisors is an integer number (9691384320).

Almost surely, 2^427187862447 is an apocalyptic number.

427187862447 is a deficient number, since it is larger than the sum of its proper divisors (193060734033).

427187862447 is a wasteful number, since it uses less digits than its factorization.

427187862447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024.

The product of its digits is 33718272, while the sum is 60.

The spelling of 427187862447 in words is "four hundred twenty-seven billion, one hundred eighty-seven million, eight hundred sixty-two thousand, four hundred forty-seven".