7827166378 has 8 divisors (see below), whose sum is σ = 12119483520. Its totient is φ = 3787338540.

The previous prime is 7827166351. The next prime is 7827166379. The reversal of 7827166378 is 8736617287.

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

It is a super-2 number, since 2×7827166378² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7827166379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63122248 + ... + 63122371.

It is an arithmetic number, because the mean of its divisors is an integer number (1514935440).

Almost surely, 2^7827166378 is an apocalyptic number.

7827166378 is a deficient number, since it is larger than the sum of its proper divisors (4292317142).

7827166378 is a wasteful number, since it uses less digits than its factorization.

7827166378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126244652.

The product of its digits is 4741632, while the sum is 55.

The square root of 7827166378 is about 88471.2743098007. The cubic root of 7827166378 is about 1985.4922147112.

The spelling of 7827166378 in words is "seven billion, eight hundred twenty-seven million, one hundred sixty-six thousand, three hundred seventy-eight".