42664215241 has 4 divisors (see below), whose sum is σ = 42668658432. Its totient is φ = 42659772052.

The previous prime is 42664215239. The next prime is 42664215283. The reversal of 42664215241 is 14251246624.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42664215241 - 2¹ = 42664215239 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 42664215241.

It is not an unprimeable number, because it can be changed into a prime (42664215211) 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, 2207161 + ... + 2226406.

It is an arithmetic number, because the mean of its divisors is an integer number (10667164608).

Almost surely, 2^42664215241 is an apocalyptic number.

It is an amenable number.

42664215241 is a deficient number, since it is larger than the sum of its proper divisors (4443191).

42664215241 is an equidigital number, since it uses as much as digits as its factorization.

42664215241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4443190.

The product of its digits is 92160, while the sum is 37.

The spelling of 42664215241 in words is "forty-two billion, six hundred sixty-four million, two hundred fifteen thousand, two hundred forty-one".