7978092459 has 4 divisors (see below), whose sum is σ = 10637456616. Its totient is φ = 5318728304.

The previous prime is 7978092431. The next prime is 7978092467. The reversal of 7978092459 is 9542908797.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7978092459 - 2⁵ = 7978092427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7978092259) by changing a digit.

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, 1329682074 + ... + 1329682079.

It is an arithmetic number, because the mean of its divisors is an integer number (2659364154).

Almost surely, 2^7978092459 is an apocalyptic number.

7978092459 is a deficient number, since it is larger than the sum of its proper divisors (2659364157).

7978092459 is a wasteful number, since it uses less digits than its factorization.

7978092459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659364156.

The product of its (nonzero) digits is 11430720, while the sum is 60.

The square root of 7978092459 is about 89320.1682656274. The cubic root of 7978092459 is about 1998.1727025839.

The spelling of 7978092459 in words is "seven billion, nine hundred seventy-eight million, ninety-two thousand, four hundred fifty-nine".