618932495872 has 20 divisors (see below), whose sum is σ = 1236656140236. Its totient is φ = 309466247680.

The previous prime is 618932495833. The next prime is 618932495879. The reversal of 618932495872 is 278594239816.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (618932495879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 604425754 + ... + 604426777.

Almost surely, 2^618932495872 is an apocalyptic number.

It is an amenable number.

618932495872 is a deficient number, since it is larger than the sum of its proper divisors (617723644364).

618932495872 is an equidigital number, since it uses as much as digits as its factorization.

618932495872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208852549 (or 1208852533 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 64.

The spelling of 618932495872 in words is "six hundred eighteen billion, nine hundred thirty-two million, four hundred ninety-five thousand, eight hundred seventy-two".