618647198253 has 16 divisors (see below), whose sum is σ = 942792854016. Its totient is φ = 353478049200.

The previous prime is 618647198251. The next prime is 618647198353. The reversal of 618647198253 is 352891746816.

It is a happy number.

It is not a de Polignac number, because 618647198253 - 2¹ = 618647198251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618647198251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1222923 + ... + 1653128.

It is an arithmetic number, because the mean of its divisors is an integer number (58924553376).

Almost surely, 2^618647198253 is an apocalyptic number.

It is an amenable number.

618647198253 is a deficient number, since it is larger than the sum of its proper divisors (324145655763).

618647198253 is a wasteful number, since it uses less digits than its factorization.

618647198253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886304.

The product of its digits is 17418240, while the sum is 60.

The spelling of 618647198253 in words is "six hundred eighteen billion, six hundred forty-seven million, one hundred ninety-eight thousand, two hundred fifty-three".