6685746973 has 8 divisors (see below), whose sum is σ = 6977678400. Its totient is φ = 6393919488.

The previous prime is 6685746953. The next prime is 6685747009. The reversal of 6685746973 is 3796475866.

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

It is a cyclic number.

It is not a de Polignac number, because 6685746973 - 2²⁵ = 6652192541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685746943) 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, 123933 + ... + 169501.

It is an arithmetic number, because the mean of its divisors is an integer number (872209800).

Almost surely, 2^6685746973 is an apocalyptic number.

It is an amenable number.

6685746973 is a deficient number, since it is larger than the sum of its proper divisors (291931427).

6685746973 is a wasteful number, since it uses less digits than its factorization.

6685746973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51971.

The product of its digits is 45722880, while the sum is 61.

The square root of 6685746973 is about 81766.4171466501. The cubic root of 6685746973 is about 1883.8658730918.

The spelling of 6685746973 in words is "six billion, six hundred eighty-five million, seven hundred forty-six thousand, nine hundred seventy-three".