6501682278 has 96 divisors (see below), whose sum is σ = 17596889856. Its totient is φ = 1689107904.

The previous prime is 6501682267. The next prime is 6501682279. The reversal of 6501682278 is 8722861056.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6501682279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80125 + ... + 139367.

It is an arithmetic number, because the mean of its divisors is an integer number (183300936).

Almost surely, 2^6501682278 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6501682278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8798444928).

6501682278 is an abundant number, since it is smaller than the sum of its proper divisors (11095207578).

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

6501682278 is a wasteful number, since it uses less digits than its factorization.

6501682278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59338 (or 59335 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 6501682278 is about 80633.0098532853. The cubic root of 6501682278 is about 1866.4165676337.

The spelling of 6501682278 in words is "six billion, five hundred one million, six hundred eighty-two thousand, two hundred seventy-eight".