6121519549856 has 48 divisors (see below), whose sum is σ = 12457074244608. Its totient is φ = 2958081120000.

The previous prime is 6121519549813. The next prime is 6121519549883. The reversal of 6121519549856 is 6589459151216.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3363455 + ... + 4853438.

It is an arithmetic number, because the mean of its divisors is an integer number (259522380096).

Almost surely, 2^{6121519549856} is an apocalyptic number.

It is an amenable number.

6121519549856 is an abundant number, since it is smaller than the sum of its proper divisors (6335554694752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6121519549856 is a wasteful number, since it uses less digits than its factorization.

6121519549856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8217685 (or 8217677 counting only the distinct ones).

The product of its digits is 23328000, while the sum is 62.

The spelling of 6121519549856 in words is "six trillion, one hundred twenty-one billion, five hundred nineteen million, five hundred forty-nine thousand, eight hundred fifty-six".