618421353 has 16 divisors (see below), whose sum is σ = 899942400. Its totient is φ = 374625680.

The previous prime is 618421351. The next prime is 618421357. The reversal of 618421353 is 353124816.

618421353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 618421353 - 2¹ = 618421351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (618421351) 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, 120208 + ... + 125246.

It is an arithmetic number, because the mean of its divisors is an integer number (56246400).

Almost surely, 2^618421353 is an apocalyptic number.

It is an amenable number.

618421353 is a deficient number, since it is larger than the sum of its proper divisors (281521047).

618421353 is a wasteful number, since it uses less digits than its factorization.

618421353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8772.

The product of its digits is 17280, while the sum is 33.

The square root of 618421353 is about 24868.0789969792. The cubic root of 618421353 is about 851.9775653133.

The spelling of 618421353 in words is "six hundred eighteen million, four hundred twenty-one thousand, three hundred fifty-three".