42847421164403 has 4 divisors (see below), whose sum is σ = 42899610472368. Its totient is φ = 42795231856440.

The previous prime is 42847421164369. The next prime is 42847421164421. The reversal of 42847421164403 is 30446112474824.

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 42847421164403 - 2²⁰ = 42847420115827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42847421161403) 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, 26094652751 + ... + 26094654392.

It is an arithmetic number, because the mean of its divisors is an integer number (10724902618092).

Almost surely, 2^{42847421164403} is an apocalyptic number.

42847421164403 is a deficient number, since it is larger than the sum of its proper divisors (52189307965).

42847421164403 is an equidigital number, since it uses as much as digits as its factorization.

42847421164403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52189307964.

The product of its (nonzero) digits is 4128768, while the sum is 50.

The spelling of 42847421164403 in words is "forty-two trillion, eight hundred forty-seven billion, four hundred twenty-one million, one hundred sixty-four thousand, four hundred three".