67662998772 has 12 divisors (see below), whose sum is σ = 157880330496. Its totient is φ = 22554332920.

The previous prime is 67662998729. The next prime is 67662998791. The reversal of 67662998772 is 27789926676.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 67662998697 and 67662998706.

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 3 ways as a sum of consecutive naturals, for example, 2819291604 + ... + 2819291627.

It is an arithmetic number, because the mean of its divisors is an integer number (13156694208).

Almost surely, 2^67662998772 is an apocalyptic number.

It is an amenable number.

67662998772 is an abundant number, since it is smaller than the sum of its proper divisors (90217331724).

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

67662998772 is a wasteful number, since it uses less digits than its factorization.

67662998772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638583238 (or 5638583236 counting only the distinct ones).

The product of its digits is 192036096, while the sum is 69.

The spelling of 67662998772 in words is "sixty-seven billion, six hundred sixty-two million, nine hundred ninety-eight thousand, seven hundred seventy-two".