6121770885 has 64 divisors (see below), whose sum is σ = 11176704000. Its totient is φ = 3177285120.

The previous prime is 6121770881. The next prime is 6121770913. The reversal of 6121770885 is 5880771216.

It is a happy number.

6121770885 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 6121770885 - 2² = 6121770881 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6121770885.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121770881) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2650111 + ... + 2652419.

It is an arithmetic number, because the mean of its divisors is an integer number (174636000).

Almost surely, 2^6121770885 is an apocalyptic number.

It is an amenable number.

6121770885 is a deficient number, since it is larger than the sum of its proper divisors (5054933115).

6121770885 is a wasteful number, since it uses less digits than its factorization.

6121770885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2843 (or 2837 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The square root of 6121770885 is about 78241.7464337294. The cubic root of 6121770885 is about 1829.3312660020.

The spelling of 6121770885 in words is "six billion, one hundred twenty-one million, seven hundred seventy thousand, eight hundred eighty-five".