6121212489 has 24 divisors (see below), whose sum is σ = 10165384320. Its totient is φ = 3476884608.

The previous prime is 6121212467. The next prime is 6121212509. The reversal of 6121212489 is 9842121216.

6121212489 is a `hidden beast` number, since 612 + 12 + 1 + 24 + 8 + 9 = 666.

6121212489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6121212489 - 2⁸ = 6121212233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6121212089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280384 + ... + 301425.

It is an arithmetic number, because the mean of its divisors is an integer number (423557680).

Almost surely, 2^6121212489 is an apocalyptic number.

It is an amenable number.

6121212489 is a deficient number, since it is larger than the sum of its proper divisors (4044171831).

6121212489 is a wasteful number, since it uses less digits than its factorization.

6121212489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 581989 (or 581986 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 6121212489 is about 78238.1779504099. The cubic root of 6121212489 is about 1829.2756436263.

The spelling of 6121212489 in words is "six billion, one hundred twenty-one million, two hundred twelve thousand, four hundred eighty-nine".