6121530045380 has 48 divisors (see below), whose sum is σ = 12969823265280. Its totient is φ = 2426784342528.

The previous prime is 6121530045377. The next prime is 6121530045391. The reversal of 6121530045380 is 835400351216.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38175011 + ... + 38335029.

It is an arithmetic number, because the mean of its divisors is an integer number (270204651360).

Almost surely, 2^{6121530045380} is an apocalyptic number.

It is an amenable number.

6121530045380 is an abundant number, since it is smaller than the sum of its proper divisors (6848293219900).

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

6121530045380 is a wasteful number, since it uses less digits than its factorization.

6121530045380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177068 (or 177066 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 38.

Adding to 6121530045380 its reverse (835400351216), we get a palindrome (6956930396596).

The spelling of 6121530045380 in words is "six trillion, one hundred twenty-one billion, five hundred thirty million, forty-five thousand, three hundred eighty".