67198901213808 has 800 divisors, whose sum is σ = 247755035996160. Its totient is φ = 17105478082560.

The previous prime is 67198901213761. The next prime is 67198901213837. The reversal of 67198901213808 is 80831210989176.

67198901213808 is a `hidden beast` number, since 6 + 71 + 98 + 90 + 12 + 1 + 380 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 1385605816 + ... + 1385654312.

Almost surely, 2^{67198901213808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67198901213808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123877517998080).

67198901213808 is an abundant number, since it is smaller than the sum of its proper divisors (180556134782352).

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

67198901213808 is a wasteful number, since it uses less digits than its factorization.

67198901213808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48947 (or 48932 counting only the distinct ones).

The product of its (nonzero) digits is 10450944, while the sum is 63.

The spelling of 67198901213808 in words is "sixty-seven trillion, one hundred ninety-eight billion, nine hundred one million, two hundred thirteen thousand, eight hundred eight".