6711686730 has 288 divisors, whose sum is σ = 21847722624. Its totient is φ = 1452028032.

The previous prime is 6711686699. The next prime is 6711686753. The reversal of 6711686730 is 376861176.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6140064 + ... + 6141156.

It is an arithmetic number, because the mean of its divisors is an integer number (75860148).

Almost surely, 2^6711686730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6711686730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10923861312).

6711686730 is an abundant number, since it is smaller than the sum of its proper divisors (15136035894).

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

6711686730 is a wasteful number, since it uses less digits than its factorization.

6711686730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160 (or 1129 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 6711686730 is about 81924.8846810296. The cubic root of 6711686730 is about 1886.2991070536.

It can be divided in two parts, 671 and 1686730, that added together give a square (1687401 = 1299²).

The spelling of 6711686730 in words is "six billion, seven hundred eleven million, six hundred eighty-six thousand, seven hundred thirty".