4219684655 has 4 divisors (see below), whose sum is σ = 5063621592. Its totient is φ = 3375747720.

The previous prime is 4219684649. The next prime is 4219684657. The reversal of 4219684655 is 5564869124.

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

It is not a de Polignac number, because 4219684655 - 2⁴ = 4219684639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4219684657) 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, 421968461 + ... + 421968470.

It is an arithmetic number, because the mean of its divisors is an integer number (1265905398).

Almost surely, 2^4219684655 is an apocalyptic number.

4219684655 is a deficient number, since it is larger than the sum of its proper divisors (843936937).

4219684655 is an equidigital number, since it uses as much as digits as its factorization.

4219684655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843936936.

The product of its digits is 2073600, while the sum is 50.

The square root of 4219684655 is about 64959.0998629137. The cubic root of 4219684655 is about 1615.9453363071.

The spelling of 4219684655 in words is "four billion, two hundred nineteen million, six hundred eighty-four thousand, six hundred fifty-five".