5618326453278 has 128 divisors (see below), whose sum is σ = 14624222699520. Its totient is φ = 1395304859520.

The previous prime is 5618326453219. The next prime is 5618326453357. The reversal of 5618326453278 is 8723546238165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 27067293 + ... + 27274071.

It is an arithmetic number, because the mean of its divisors is an integer number (114251739840).

Almost surely, 2^{5618326453278} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5618326453278, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7312111349760).

5618326453278 is an abundant number, since it is smaller than the sum of its proper divisors (9005896246242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5618326453278 is a wasteful number, since it uses less digits than its factorization.

5618326453278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209382.

The product of its digits is 58060800, while the sum is 60.

The spelling of 5618326453278 in words is "five trillion, six hundred eighteen billion, three hundred twenty-six million, four hundred fifty-three thousand, two hundred seventy-eight".