67912008444 has 72 divisors (see below), whose sum is σ = 204814009680. Its totient is φ = 19403429472.

The previous prime is 67912008443. The next prime is 67912008473. The reversal of 67912008444 is 44480021976.

It is a super-2 number, since 2×67912008444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 67912008444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67912008443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6411187 + ... + 6421770.

Almost surely, 2^67912008444 is an apocalyptic number.

It is an amenable number.

67912008444 is an abundant number, since it is smaller than the sum of its proper divisors (136902001236).

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

67912008444 is a wasteful number, since it uses less digits than its factorization.

67912008444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12832984 (or 12832969 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 67912008444 in words is "sixty-seven billion, nine hundred twelve million, eight thousand, four hundred forty-four".