6999271187392 has 112 divisors (see below), whose sum is σ = 15521279583744. Its totient is φ = 3104075520000.

The previous prime is 6999271187371. The next prime is 6999271187443. The reversal of 6999271187392 is 2937811729996.

It is a congruent number.

It is an unprimeable number.

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, 27450892 + ... + 27704692.

Almost surely, 2^{6999271187392} 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 6999271187392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7760639791872).

6999271187392 is an abundant number, since it is smaller than the sum of its proper divisors (8522008396352).

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

6999271187392 is a wasteful number, since it uses less digits than its factorization.

6999271187392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254778 (or 254768 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 73.

The spelling of 6999271187392 in words is "six trillion, nine hundred ninety-nine billion, two hundred seventy-one million, one hundred eighty-seven thousand, three hundred ninety-two".