4242156819 has 8 divisors (see below), whose sum is σ = 5809079760. Its totient is φ = 2751669216.

The previous prime is 4242156797. The next prime is 4242156833. The reversal of 4242156819 is 9186512424.

4242156819 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 4242156819 - 2¹² = 4242152723 is a prime.

It is a super-2 number, since 2×4242156819² = 35991788953976397522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4242156719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19108704 + ... + 19108925.

It is an arithmetic number, because the mean of its divisors is an integer number (726134970).

Almost surely, 2^4242156819 is an apocalyptic number.

4242156819 is a deficient number, since it is larger than the sum of its proper divisors (1566922941).

4242156819 is a wasteful number, since it uses less digits than its factorization.

4242156819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38217669.

The product of its digits is 138240, while the sum is 42.

The square root of 4242156819 is about 65131.8418210325. The cubic root of 4242156819 is about 1618.8088611066.

The spelling of 4242156819 in words is "four billion, two hundred forty-two million, one hundred fifty-six thousand, eight hundred nineteen".