78220507830127 has 8 divisors (see below), whose sum is σ = 84238222849200. Its totient is φ = 72202900365120.

The previous prime is 78220507830103. The next prime is 78220507830181. The reversal of 78220507830127 is 72103870502287.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-78220507830127 is a prime.

It is a super-2 number, since 2×78220507830127² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78220507830827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25374877 + ... + 28290022.

It is an arithmetic number, because the mean of its divisors is an integer number (10529777856150).

Almost surely, 2^{78220507830127} is an apocalyptic number.

78220507830127 is a deficient number, since it is larger than the sum of its proper divisors (6017715019073).

78220507830127 is a wasteful number, since it uses less digits than its factorization.

78220507830127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53777033.

The product of its (nonzero) digits is 2634240, while the sum is 52.

The spelling of 78220507830127 in words is "seventy-eight trillion, two hundred twenty billion, five hundred seven million, eight hundred thirty thousand, one hundred twenty-seven".