67618691218368 has 42 divisors (see below), whose sum is σ = 193816769448744. Its totient is φ = 22539563739264.

The previous prime is 67618691218349. The next prime is 67618691218369. The reversal of 67618691218368 is 86381219681676.

67618691218368 is a `hidden beast` number, since 6 + 7 + 61 + 86 + 9 + 121 + 8 + 368 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 67618691218296 and 67618691218305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67618691218369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 58696779996 + ... + 58696781147.

Almost surely, 2^{67618691218368} is an apocalyptic number.

It is an amenable number.

67618691218368 is an abundant number, since it is smaller than the sum of its proper divisors (126198078230376).

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

67618691218368 is a wasteful number, since it uses less digits than its factorization.

67618691218368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117393561161 (or 117393561148 counting only the distinct ones).

The product of its digits is 250822656, while the sum is 72.

The spelling of 67618691218368 in words is "sixty-seven trillion, six hundred eighteen billion, six hundred ninety-one million, two hundred eighteen thousand, three hundred sixty-eight".