67667284920 has 64 divisors (see below), whose sum is σ = 203018970240. Its totient is φ = 18043088000.

The previous prime is 67667284913. The next prime is 67667285071. The reversal of 67667284920 is 2948276676.

67667284920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×67667284920² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2710495 + ... + 2735345.

It is an arithmetic number, because the mean of its divisors is an integer number (3172171410).

Almost surely, 2^67667284920 is an apocalyptic number.

67667284920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

67667284920 is an abundant number, since it is smaller than the sum of its proper divisors (135351685320).

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

67667284920 is a wasteful number, since it uses less digits than its factorization.

67667284920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47556 (or 47552 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 57.

The spelling of 67667284920 in words is "sixty-seven billion, six hundred sixty-seven million, two hundred eighty-four thousand, nine hundred twenty".