7800000079 has 8 divisors (see below), whose sum is σ = 7875757008. Its totient is φ = 7724296320.

The previous prime is 7800000017. The next prime is 7800000083. The reversal of 7800000079 is 9700000087.

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

It is a cyclic number.

It is not a de Polignac number, because 7800000079 - 2¹³ = 7799991887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7800100079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322269 + ... + 345625.

It is an arithmetic number, because the mean of its divisors is an integer number (984469626).

Almost surely, 2^7800000079 is an apocalyptic number.

7800000079 is a deficient number, since it is larger than the sum of its proper divisors (75756929).

7800000079 is a wasteful number, since it uses less digits than its factorization.

7800000079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26585.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 7800000079 is about 88317.6091105279. The cubic root of 7800000079 is about 1983.1924893762.

The spelling of 7800000079 in words is "seven billion, eight hundred million, seventy-nine", and thus it is an aban number.