7822074638 has 8 divisors (see below), whose sum is σ = 13409270832. Its totient is φ = 3352317696.

The previous prime is 7822074563. The next prime is 7822074649. The reversal of 7822074638 is 8364702287.

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

It is a super-2 number, since 2×7822074638² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7822074592 and 7822074601.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279359795 + ... + 279359822.

It is an arithmetic number, because the mean of its divisors is an integer number (1676158854).

Almost surely, 2^7822074638 is an apocalyptic number.

7822074638 is a deficient number, since it is larger than the sum of its proper divisors (5587196194).

7822074638 is a wasteful number, since it uses less digits than its factorization.

7822074638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558719626.

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 7822074638 is about 88442.4933954262. The cubic root of 7822074638 is about 1985.0615861965.

The spelling of 7822074638 in words is "seven billion, eight hundred twenty-two million, seventy-four thousand, six hundred thirty-eight".