5106021987 has 32 divisors (see below), whose sum is σ = 7518191616. Its totient is φ = 3056695200.

The previous prime is 5106021959. The next prime is 5106022007. The reversal of 5106021987 is 7891206015.

It is not a de Polignac number, because 5106021987 - 2⁶ = 5106021923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5106020987) 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 31 ways as a sum of consecutive naturals, for example, 1504062 + ... + 1507452.

It is an arithmetic number, because the mean of its divisors is an integer number (234943488).

Almost surely, 2^5106021987 is an apocalyptic number.

5106021987 is a deficient number, since it is larger than the sum of its proper divisors (2412169629).

5106021987 is a wasteful number, since it uses less digits than its factorization.

5106021987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951.

The product of its (nonzero) digits is 30240, while the sum is 39.

The square root of 5106021987 is about 71456.4341889518. The cubic root of 5106021987 is about 1721.9778477053.

The spelling of 5106021987 in words is "five billion, one hundred six million, twenty-one thousand, nine hundred eighty-seven".