6121256480 has 96 divisors (see below), whose sum is σ = 14706437760. Its totient is φ = 2407229440.

The previous prime is 6121256473. The next prime is 6121256509. The reversal of 6121256480 is 846521216.

It is a self number, because there is not a number n which added to its sum of digits gives 6121256480.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6463367 + ... + 6464313.

It is an arithmetic number, because the mean of its divisors is an integer number (153192060).

Almost surely, 2^6121256480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6121256480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7353218880).

6121256480 is an abundant number, since it is smaller than the sum of its proper divisors (8585181280).

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

6121256480 is a wasteful number, since it uses less digits than its factorization.

6121256480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602 (or 1594 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 6121256480 is about 78238.4590850306. The cubic root of 6121256480 is about 1829.2800257359.

Adding to 6121256480 its reverse (846521216), we get a palindrome (6967777696).

The spelling of 6121256480 in words is "six billion, one hundred twenty-one million, two hundred fifty-six thousand, four hundred eighty".