6999376643675 has 24 divisors (see below), whose sum is σ = 9358413835680. Its totient is φ = 5162381164800.

The previous prime is 6999376643641. The next prime is 6999376643683. The reversal of 6999376643675 is 5763466739996.

It is not a de Polignac number, because 6999376643675 - 2⁸ = 6999376643419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6999376643675.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13047671 + ... + 13573520.

It is an arithmetic number, because the mean of its divisors is an integer number (389933909820).

Almost surely, 2^{6999376643675} is an apocalyptic number.

6999376643675 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6999376643675 is a deficient number, since it is larger than the sum of its proper divisors (2359037192005).

6999376643675 is a wasteful number, since it uses less digits than its factorization.

6999376643675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26622023 (or 26622018 counting only the distinct ones).

The product of its digits is 8332994880, while the sum is 80.

The spelling of 6999376643675 in words is "six trillion, nine hundred ninety-nine billion, three hundred seventy-six million, six hundred forty-three thousand, six hundred seventy-five".