6121877782216 has 32 divisors (see below), whose sum is σ = 13119064813440. Its totient is φ = 2623510850688.

The previous prime is 6121877782171. The next prime is 6121877782231. The reversal of 6121877782216 is 6122877781216.

It is a happy number.

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, 2162940 + ... + 4113643.

It is an arithmetic number, because the mean of its divisors is an integer number (409970775420).

Almost surely, 2^{6121877782216} is an apocalyptic number.

It is an amenable number.

6121877782216 is an abundant number, since it is smaller than the sum of its proper divisors (6997187031224).

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

6121877782216 is a wasteful number, since it uses less digits than its factorization.

6121877782216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6294013 (or 6294009 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 58.

The spelling of 6121877782216 in words is "six trillion, one hundred twenty-one billion, eight hundred seventy-seven million, seven hundred eighty-two thousand, two hundred sixteen".