4936121987 has 8 divisors (see below), whose sum is σ = 5115293040. Its totient is φ = 4757548320.

The previous prime is 4936121969. The next prime is 4936121999. The reversal of 4936121987 is 7891216394.

4936121987 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 a cyclic number.

It is not a de Polignac number, because 4936121987 - 2⁶ = 4936121923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4936121917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132488 + ... + 165605.

It is an arithmetic number, because the mean of its divisors is an integer number (639411630).

Almost surely, 2^4936121987 is an apocalyptic number.

4936121987 is a deficient number, since it is larger than the sum of its proper divisors (179171053).

4936121987 is a wasteful number, since it uses less digits than its factorization.

4936121987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298693.

The product of its digits is 653184, while the sum is 50.

The square root of 4936121987 is about 70257.5404280565. The cubic root of 4936121987 is about 1702.6627230268.

The spelling of 4936121987 in words is "four billion, nine hundred thirty-six million, one hundred twenty-one thousand, nine hundred eighty-seven".