6685702992 has 30 divisors (see below), whose sum is σ = 18710683082. Its totient is φ = 2228567616.

The previous prime is 6685702987. The next prime is 6685702993. The reversal of 6685702992 is 2992075866.

6685702992 is a `hidden beast` number, since 6 + 68 + 570 + 2 + 9 + 9 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5901926976 + 783776016 = 76824^2 + 27996^2 .

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6685702993) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23214103 + ... + 23214390.

Almost surely, 2^6685702992 is an apocalyptic number.

It is an amenable number.

6685702992 is an abundant number, since it is smaller than the sum of its proper divisors (12024980090).

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

6685702992 is a wasteful number, since it uses less digits than its factorization.

6685702992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46428507 (or 46428498 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 6685702992 is about 81766.1482032754. The cubic root of 6685702992 is about 1883.8617421903.

The spelling of 6685702992 in words is "six billion, six hundred eighty-five million, seven hundred two thousand, nine hundred ninety-two".