4992111887 has 16 divisors (see below), whose sum is σ = 5800925760. Its totient is φ = 4207776768.

The previous prime is 4992111871. The next prime is 4992111899. The reversal of 4992111887 is 7881112994.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 4992111887 - 2⁴ = 4992111871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4992114887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83189 + ... + 130017.

It is an arithmetic number, because the mean of its divisors is an integer number (362557860).

Almost surely, 2^4992111887 is an apocalyptic number.

4992111887 is a deficient number, since it is larger than the sum of its proper divisors (808813873).

4992111887 is a wasteful number, since it uses less digits than its factorization.

4992111887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47090.

The product of its digits is 290304, while the sum is 50.

The square root of 4992111887 is about 70654.8787204394. The cubic root of 4992111887 is about 1709.0762411458.

The spelling of 4992111887 in words is "four billion, nine hundred ninety-two million, one hundred eleven thousand, eight hundred eighty-seven".