67767243472 has 80 divisors (see below), whose sum is σ = 137163220992. Its totient is φ = 32397742080.

The previous prime is 67767243469. The next prime is 67767243541. The reversal of 67767243472 is 27434276776.

It is a super-2 number, since 2×67767243472² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53066898 + ... + 53068174.

Almost surely, 2^67767243472 is an apocalyptic number.

67767243472 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 67767243472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68581610496).

67767243472 is an abundant number, since it is smaller than the sum of its proper divisors (69395977520).

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

67767243472 is a wasteful number, since it uses less digits than its factorization.

67767243472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516 (or 2510 counting only the distinct ones).

The product of its digits is 16595712, while the sum is 55.

The spelling of 67767243472 in words is "sixty-seven billion, seven hundred sixty-seven million, two hundred forty-three thousand, four hundred seventy-two".