6861614623555 has 8 divisors (see below), whose sum is σ = 8241771938544. Its totient is φ = 5484068772000.

The previous prime is 6861614623543. The next prime is 6861614623559. The reversal of 6861614623555 is 5553264161686.

6861614623555 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6861614623555 - 2⁷ = 6861614623427 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6861614623555.

It is not an unprimeable number, because it can be changed into a prime (6861614623559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 652860076 + ... + 652870585.

It is an arithmetic number, because the mean of its divisors is an integer number (1030221492318).

Almost surely, 2^{6861614623555} is an apocalyptic number.

6861614623555 is a deficient number, since it is larger than the sum of its proper divisors (1380157314989).

6861614623555 is a wasteful number, since it uses less digits than its factorization.

6861614623555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305731717.

The product of its digits is 31104000, while the sum is 58.

The spelling of 6861614623555 in words is "six trillion, eight hundred sixty-one billion, six hundred fourteen million, six hundred twenty-three thousand, five hundred fifty-five".