67878720001344 has 112 divisors (see below), whose sum is σ = 217325985959808. Its totient is φ = 18253101170688.

The previous prime is 67878720001283. The next prime is 67878720001481. The reversal of 67878720001344 is 44310002787876.

It is a tau number, because it is divible by the number of its divisors (112).

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, 1485418329 + ... + 1485464024.

Almost surely, 2^{67878720001344} is an apocalyptic number.

67878720001344 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

67878720001344 is an abundant number, since it is smaller than the sum of its proper divisors (149447265958464).

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

67878720001344 is a wasteful number, since it uses less digits than its factorization.

67878720001344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2970882392 (or 2970882382 counting only the distinct ones).

The product of its (nonzero) digits is 12644352, while the sum is 57.

The spelling of 67878720001344 in words is "sixty-seven trillion, eight hundred seventy-eight billion, seven hundred twenty million, one thousand, three hundred forty-four".