4056219681 has 8 divisors (see below), whose sum is σ = 5408608704. Its totient is φ = 2703988560.

The previous prime is 4056219613. The next prime is 4056219751. The reversal of 4056219681 is 1869126504.

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

It is not a de Polignac number, because 4056219681 - 2⁷ = 4056219553 is a prime.

It is a super-3 number, since 3×4056219681³ (a number of 30 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (4056219481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48436 + ... + 102266.

It is an arithmetic number, because the mean of its divisors is an integer number (676076088).

Almost surely, 2^4056219681 is an apocalyptic number.

It is an amenable number.

4056219681 is a deficient number, since it is larger than the sum of its proper divisors (1352389023).

4056219681 is a wasteful number, since it uses less digits than its factorization.

4056219681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78951.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 4056219681 is about 63688.4579888695. The cubic root of 4056219681 is about 1594.8034114027.

The spelling of 4056219681 in words is "four billion, fifty-six million, two hundred nineteen thousand, six hundred eighty-one".