67090917852 has 36 divisors (see below), whose sum is σ = 193818207856. Its totient is φ = 19168833600.

The previous prime is 67090917847. The next prime is 67090917869. The reversal of 67090917852 is 25871909076.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 133116649 + ... + 133117152.

Almost surely, 2^67090917852 is an apocalyptic number.

It is an amenable number.

67090917852 is an abundant number, since it is smaller than the sum of its proper divisors (126727290004).

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

67090917852 is a wasteful number, since it uses less digits than its factorization.

67090917852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266233818 (or 266233813 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 54.

The spelling of 67090917852 in words is "sixty-seven billion, ninety million, nine hundred seventeen thousand, eight hundred fifty-two".