6891712323456 has 64 divisors (see below), whose sum is σ = 18317120440320. Its totient is φ = 2295855846912.

The previous prime is 6891712323437. The next prime is 6891712323479. The reversal of 6891712323456 is 6543232171986.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 6891712323396 and 6891712323405.

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, 4757430 + ... + 6034613.

It is an arithmetic number, because the mean of its divisors is an integer number (286205006880).

Almost surely, 2^{6891712323456} is an apocalyptic number.

It is an amenable number.

6891712323456 is an abundant number, since it is smaller than the sum of its proper divisors (11425408116864).

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

6891712323456 is a wasteful number, since it uses less digits than its factorization.

6891712323456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10793723 (or 10793711 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 57.

The spelling of 6891712323456 in words is "six trillion, eight hundred ninety-one billion, seven hundred twelve million, three hundred twenty-three thousand, four hundred fifty-six".