247444560427 has 4 divisors (see below), whose sum is σ = 258203019600. Its totient is φ = 236686101256.

The previous prime is 247444560403. The next prime is 247444560431. The reversal of 247444560427 is 724065444742.

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 247444560427 - 2³¹ = 245297076779 is a prime.

It is a super-2 number, since 2×247444560427² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (247444560457) 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, 5379229552 + ... + 5379229597.

It is an arithmetic number, because the mean of its divisors is an integer number (64550754900).

Almost surely, 2^247444560427 is an apocalyptic number.

247444560427 is a deficient number, since it is larger than the sum of its proper divisors (10758459173).

247444560427 is a wasteful number, since it uses less digits than its factorization.

247444560427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10758459172.

The product of its (nonzero) digits is 6021120, while the sum is 49.

The spelling of 247444560427 in words is "two hundred forty-seven billion, four hundred forty-four million, five hundred sixty thousand, four hundred twenty-seven".