78504622234271 has 4 divisors (see below), whose sum is σ = 78506005705512. Its totient is φ = 78503238763032.

The previous prime is 78504622234243. The next prime is 78504622234279. The reversal of 78504622234271 is 17243222640587.

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 78504622234271 - 2²⁶ = 78504555125407 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 (78504622234279) 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, 691650500 + ... + 691763993.

It is an arithmetic number, because the mean of its divisors is an integer number (19626501426378).

Almost surely, 2^{78504622234271} is an apocalyptic number.

78504622234271 is a deficient number, since it is larger than the sum of its proper divisors (1383471241).

78504622234271 is a wasteful number, since it uses less digits than its factorization.

78504622234271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1383471240.

The product of its (nonzero) digits is 9031680, while the sum is 53.

The spelling of 78504622234271 in words is "seventy-eight trillion, five hundred four billion, six hundred twenty-two million, two hundred thirty-four thousand, two hundred seventy-one".