6918009782 has 48 divisors (see below), whose sum is σ = 11479633632. Its totient is φ = 3120353280.

The previous prime is 6918009773. The next prime is 6918009793. The reversal of 6918009782 is 2879008196.

It is a self number, because there is not a number n which added to its sum of digits gives 6918009782.

It is a congruent number.

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, 4266932 + ... + 4268552.

It is an arithmetic number, because the mean of its divisors is an integer number (239159034).

Almost surely, 2^6918009782 is an apocalyptic number.

6918009782 is a deficient number, since it is larger than the sum of its proper divisors (4561623850).

6918009782 is a wasteful number, since it uses less digits than its factorization.

6918009782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1922 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 50.

The square root of 6918009782 is about 83174.5741317622. The cubic root of 6918009782 is about 1905.4331819629.

The spelling of 6918009782 in words is "six billion, nine hundred eighteen million, nine thousand, seven hundred eighty-two".