642234247527 has 8 divisors (see below), whose sum is σ = 856341195120. Its totient is φ = 428141732480.

The previous prime is 642234247477. The next prime is 642234247537. The reversal of 642234247527 is 725742432246.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642234247527 - 2¹¹ = 642234245479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642234247537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3503874 + ... + 3682607.

It is an arithmetic number, because the mean of its divisors is an integer number (107042649390).

Almost surely, 2^642234247527 is an apocalyptic number.

642234247527 is a deficient number, since it is larger than the sum of its proper divisors (214106947593).

642234247527 is a wasteful number, since it uses less digits than its factorization.

642234247527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7216273.

The product of its digits is 4515840, while the sum is 48.

The spelling of 642234247527 in words is "six hundred forty-two billion, two hundred thirty-four million, two hundred forty-seven thousand, five hundred twenty-seven".