6121486215 has 96 divisors (see below), whose sum is σ = 12147233280. Its totient is φ = 2826793728.

The previous prime is 6121486211. The next prime is 6121486237. The reversal of 6121486215 is 5126841216.

It is a happy number.

6121486215 is a `hidden beast` number, since 6 + 1 + 21 + 4 + 8 + 621 + 5 = 666.

It is not a de Polignac number, because 6121486215 - 2² = 6121486211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6121486215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6121486211) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1142172 + ... + 1147518.

It is an arithmetic number, because the mean of its divisors is an integer number (126533680).

Almost surely, 2^6121486215 is an apocalyptic number.

6121486215 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6121486215 is a deficient number, since it is larger than the sum of its proper divisors (6025747065).

6121486215 is a wasteful number, since it uses less digits than its factorization.

6121486215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5493 (or 5490 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

The square root of 6121486215 is about 78239.9272430643. The cubic root of 6121486215 is about 1829.3029101655.

The spelling of 6121486215 in words is "six billion, one hundred twenty-one million, four hundred eighty-six thousand, two hundred fifteen".