78488225413 has 8 divisors (see below), whose sum is σ = 84743076600. Its totient is φ = 72264416448.

The previous prime is 78488225369. The next prime is 78488225423. The reversal of 78488225413 is 31452288487.

It can be written as a sum of positive squares in 4 ways, for example, as 313183809 + 78175041604 = 17697^2 + 279598^2 .

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-78488225413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78488225423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7755298 + ... + 7765411.

It is an arithmetic number, because the mean of its divisors is an integer number (10592884575).

Almost surely, 2^78488225413 is an apocalyptic number.

It is an amenable number.

78488225413 is a deficient number, since it is larger than the sum of its proper divisors (6254851187).

78488225413 is a wasteful number, since it uses less digits than its factorization.

78488225413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15521111.

The product of its digits is 3440640, while the sum is 52.

The spelling of 78488225413 in words is "seventy-eight billion, four hundred eighty-eight million, two hundred twenty-five thousand, four hundred thirteen".