427564145147 has 4 divisors (see below), whose sum is σ = 427588133616. Its totient is φ = 427540156680.

The previous prime is 427564145101. The next prime is 427564145167. The reversal of 427564145147 is 741541465724.

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

It is a cyclic number.

It is not a de Polignac number, because 427564145147 - 2²² = 427559950843 is a prime.

It is a super-2 number, since 2×427564145147² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 427564145095 and 427564145104.

It is not an unprimeable number, because it can be changed into a prime (427564145167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11967479 + ... + 12003152.

It is an arithmetic number, because the mean of its divisors is an integer number (106897033404).

Almost surely, 2^427564145147 is an apocalyptic number.

427564145147 is a deficient number, since it is larger than the sum of its proper divisors (23988469).

427564145147 is a wasteful number, since it uses less digits than its factorization.

427564145147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23988468.

The product of its digits is 3763200, while the sum is 50.

The spelling of 427564145147 in words is "four hundred twenty-seven billion, five hundred sixty-four million, one hundred forty-five thousand, one hundred forty-seven".