78922232413 has 4 divisors (see below), whose sum is σ = 78922961440. Its totient is φ = 78921503388.

The previous prime is 78922232401. The next prime is 78922232443. The reversal of 78922232413 is 31423222987.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 78922232413 - 2¹³ = 78922224221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78922232413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78922232443) 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, 166143 + ... + 430636.

It is an arithmetic number, because the mean of its divisors is an integer number (19730740360).

Almost surely, 2^78922232413 is an apocalyptic number.

It is an amenable number.

78922232413 is a deficient number, since it is larger than the sum of its proper divisors (729027).

78922232413 is a wasteful number, since it uses less digits than its factorization.

78922232413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729026.

The product of its digits is 290304, while the sum is 43.

The spelling of 78922232413 in words is "seventy-eight billion, nine hundred twenty-two million, two hundred thirty-two thousand, four hundred thirteen".