78474513146227 has 16 divisors (see below), whose sum is σ = 90930301844832. Its totient is φ = 66932157790720.

The previous prime is 78474513146219. The next prime is 78474513146257. The reversal of 78474513146227 is 72264131547487.

It is a cyclic number.

It is not a de Polignac number, because 78474513146227 - 2³ = 78474513146219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78474513146257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661848928 + ... + 661967485.

It is an arithmetic number, because the mean of its divisors is an integer number (5683143865302).

Almost surely, 2^{78474513146227} is an apocalyptic number.

78474513146227 is a deficient number, since it is larger than the sum of its proper divisors (12455788698605).

78474513146227 is a wasteful number, since it uses less digits than its factorization.

78474513146227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323816758.

The product of its digits is 63221760, while the sum is 61.

The spelling of 78474513146227 in words is "seventy-eight trillion, four hundred seventy-four billion, five hundred thirteen million, one hundred forty-six thousand, two hundred twenty-seven".