6861453618720 has 96 divisors (see below), whose sum is σ = 21856428236160. Its totient is φ = 1809162291200.

The previous prime is 6861453618707. The next prime is 6861453618727. The reversal of 6861453618720 is 278163541686.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (6861453618727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80264556 + ... + 80349995.

It is an arithmetic number, because the mean of its divisors is an integer number (227671127460).

Almost surely, 2^{6861453618720} is an apocalyptic number.

6861453618720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6861453618720 is an abundant number, since it is smaller than the sum of its proper divisors (14994974617440).

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

6861453618720 is a wasteful number, since it uses less digits than its factorization.

6861453618720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160614658 (or 160614650 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 6861453618720 in words is "six trillion, eight hundred sixty-one billion, four hundred fifty-three million, six hundred eighteen thousand, seven hundred twenty".