4242899887 has 4 divisors (see below), whose sum is σ = 4252978456. Its totient is φ = 4232821320.

The previous prime is 4242899849. The next prime is 4242899929. The reversal of 4242899887 is 7889982424.

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 4242899887 - 2²³ = 4234511279 is a prime.

It is a super-2 number, since 2×4242899887² = 36004398902209225538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4242899387) 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, 5038653 + ... + 5039494.

It is an arithmetic number, because the mean of its divisors is an integer number (1063244614).

Almost surely, 2^4242899887 is an apocalyptic number.

4242899887 is a deficient number, since it is larger than the sum of its proper divisors (10078569).

4242899887 is a wasteful number, since it uses less digits than its factorization.

4242899887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10078568.

The product of its digits is 18579456, while the sum is 61.

The square root of 4242899887 is about 65137.5459086386. The cubic root of 4242899887 is about 1618.9033739442.

The spelling of 4242899887 in words is "four billion, two hundred forty-two million, eight hundred ninety-nine thousand, eight hundred eighty-seven".