6921861460756 has 24 divisors (see below), whose sum is σ = 13223908555200. Its totient is φ = 3144051672000.

The previous prime is 6921861460729. The next prime is 6921861460781. The reversal of 6921861460756 is 6570641681296.

It is a super-3 number, since 3×6921861460756³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 6921861460694 and 6921861460703.

It is a congruent 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, 56162545 + ... + 56285656.

It is an arithmetic number, because the mean of its divisors is an integer number (550996189800).

Almost surely, 2^{6921861460756} is an apocalyptic number.

It is an amenable number.

6921861460756 is a deficient number, since it is larger than the sum of its proper divisors (6302047094444).

6921861460756 is a wasteful number, since it uses less digits than its factorization.

6921861460756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112449615 (or 112449613 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 61.

The spelling of 6921861460756 in words is "six trillion, nine hundred twenty-one billion, eight hundred sixty-one million, four hundred sixty thousand, seven hundred fifty-six".