67906786220 has 144 divisors (see below), whose sum is σ = 188050232160. Its totient is φ = 20360180736.

The previous prime is 67906786219. The next prime is 67906786223. The reversal of 67906786220 is 2268760976.

It is a super-2 number, since 2×67906786220² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (67906786223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 101792 + ... + 382328.

It is an arithmetic number, because the mean of its divisors is an integer number (1305904390).

Almost surely, 2^67906786220 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 67906786220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94025116080).

67906786220 is an abundant number, since it is smaller than the sum of its proper divisors (120143445940).

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

67906786220 is a wasteful number, since it uses less digits than its factorization.

67906786220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280592 (or 280583 counting only the distinct ones).

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 67906786220 in words is "sixty-seven billion, nine hundred six million, seven hundred eighty-six thousand, two hundred twenty".