67776227272 has 64 divisors (see below), whose sum is σ = 142642805760. Its totient is φ = 29978208000.

The previous prime is 67776227269. The next prime is 67776227279. The reversal of 67776227272 is 27272267776.

It is not an unprimeable number, because it can be changed into a prime (67776227279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230022 + ... + 434122.

It is an arithmetic number, because the mean of its divisors is an integer number (2228793840).

Almost surely, 2^67776227272 is an apocalyptic number.

67776227272 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 67776227272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71321402880).

67776227272 is an abundant number, since it is smaller than the sum of its proper divisors (74866578488).

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

67776227272 is a wasteful number, since it uses less digits than its factorization.

67776227272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204254 (or 204250 counting only the distinct ones).

The product of its digits is 9680832, while the sum is 55.

The spelling of 67776227272 in words is "sixty-seven billion, seven hundred seventy-six million, two hundred twenty-seven thousand, two hundred seventy-two".