5106021989 has 4 divisors (see below), whose sum is σ = 5106181920. Its totient is φ = 5105862060.

The previous prime is 5106021959. The next prime is 5106022007. The reversal of 5106021989 is 9891206015.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 5106021989 - 2³² = 811054693 is a prime.

It is a super-2 number, since 2×5106021989² = 52142921104303032242, 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 (5106021959) 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 3 ways as a sum of consecutive naturals, for example, 13859 + ... + 102000.

It is an arithmetic number, because the mean of its divisors is an integer number (1276545480).

Almost surely, 2^5106021989 is an apocalyptic number.

It is an amenable number.

5106021989 is a deficient number, since it is larger than the sum of its proper divisors (159931).

5106021989 is a wasteful number, since it uses less digits than its factorization.

5106021989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159930.

The product of its (nonzero) digits is 38880, while the sum is 41.

The square root of 5106021989 is about 71456.4342029463. The cubic root of 5106021989 is about 1721.9778479301.

The spelling of 5106021989 in words is "five billion, one hundred six million, twenty-one thousand, nine hundred eighty-nine".