42821302827 has 4 divisors (see below), whose sum is σ = 57095070440. Its totient is φ = 28547535216.

The previous prime is 42821302807. The next prime is 42821302847. The reversal of 42821302827 is 72820312824.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (42821302807) and next prime (42821302847).

It is not a de Polignac number, because 42821302827 - 2¹⁵ = 42821270059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42821302807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7136883802 + ... + 7136883807.

It is an arithmetic number, because the mean of its divisors is an integer number (14273767610).

Almost surely, 2^42821302827 is an apocalyptic number.

42821302827 is a deficient number, since it is larger than the sum of its proper divisors (14273767613).

42821302827 is a wasteful number, since it uses less digits than its factorization.

42821302827 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14273767612.

The product of its (nonzero) digits is 86016, while the sum is 39.

The spelling of 42821302827 in words is "forty-two billion, eight hundred twenty-one million, three hundred two thousand, eight hundred twenty-seven".